Day 10
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<({<[(({(((({(<><>)[[][]]}<<()>{{}}>)(<{(){}}((){})>))<[((<><>){()()})[(<>{}){[]{}}]]>){{(({[]()}<[][]>
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{<({[[<<{(<{(<{}()>([][])){<<>}[<>()]}}[<(<>()){()()}>[[(){}]({}())]]>{({{<>{}}[<><>]}<{()<>}{{}()
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{{<<<[<({[{{<({}())(<>{})>(<()<>><()[]>)}<([<>{}](<>[]))<{{}<>]>>}<[[<<><>><[]()>][[[]{}]{{}}]][{(<>(
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[[<<<[([[([<(({}[]){{}[]})><{([]<>)[(){}]}[{()[]}([]{})]>][({({}[])<[]{}>}{[{}()](<>())}){(([]{}){[][]})[
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{((({{<[(((<(<()><()()>)>[{<[]()>{<>{}}}{([][])<[]()>}]){(({[][]}{()})(({}<>)[<>{}]))({{()<
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[[[(({[<<[([[[[]<>]{[]()}]([{}()]{{}{}}]][{[()()]{(){}}}(([]())<{}>)])][{[(([][]){[]{}})]<{(()<
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{<[{[({<{[{[<[()<>]>({[]<>}{[]()})]}{[([<>{}]({}{})){([]{})}]{{<{}{}>}{<()<>>(<>{})}}}](([{{(){}}<{}{}>
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<{({{[(({({<[[[][]]]{[<>()][{}()]}>((<{}<>>))})(<(<[{}[]]({}<>)><({}<>)>)[[{()<>}{<>{}}}[{[]<>
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[<[[[{<[([<(<<<>{}><(){}>>(<[]()>)){<<{}<>>[()]>[<[]<>>([][])]}><<{[{}()][{}[]]}<({}{})>>({{{}{}}}
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{[[{<(<[{[<(<<{}{}>{[]()}>){{(()<>)[[]<>]}}>[[[[<><>]<[]{}>]]]]}({{{{([]<>)[[]{}]}}{{(()[])[[]{}]}}}}((<(<<
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<[([({<({(<{[[[][]][<>()]][<{}[]>]}[{(()())<{}{}>}<({}())(<>{})>]>{(<<[]{}>>{{{}<>}[[]<>]}){{([]
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{<<[<(<{[[<[{[()[]](<><>)}{<[]{}>(()[])}]<{{[]{}}<{}<>>}([[]()]([])))>(([[<><>]]))]<[<{{[][
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(((<<([[([<<[(()[]]<()<>>]<(()[]){{}[]}>><<[{}{}](()())>{<()()>[{}()]}>>])(([[({(){}}<<><>>)[{{}[]}[{
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[<{([[<(<<[[([<>[]][<>()])(((){})([]()))](<{[]<>}({}())>[<<>[]>(()[])])]{[((<>())[{}()])(([])((){})
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(({<{<([[[(<(<[]()>{<><>}){[[]()]{{}<>}}>)]<([<{()[]}<<><>>>{{<>()}{[][]}}][<{[]<>}<{}()>>])[<{
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<<<<[([({{(<[<<>{})]<[[][]][{}{}]>>[<{{}()}[[]<>]><[[]<>]{[]()}>])}}<(<([(()())({}())]({<>
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{<[{{(<((<{<[<()()>[{}<>]][([]())[{}{}]]><{[[]{}]{()()}}{([]<>)<()<>>}>}><{(<<<>{}>[[]]><({}[])({}()]>)}<{[
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(<{{<(([[({<(<{}><<>{}>)><{[(){}]}<{<>()}[[]<>]>>}{({<(){}}({}{})})})<<[[<(){}>{[]()}]<[{}{}]>]
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<{((<{[{<{[((((){})(<>{}))[<{}[]>[()]])(<[()()]{()<>}>)]{{({()}<{}[]))}[<(()[])><[()[]]({}<>)>
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(<(<({[{<{{{<[{}][[]<>]><{<><>}(<>[])>}}}>}<{<[({<[]{}>[{}()]}([()[]]{[]<>}))[[({}[])]{({}{})[{}[]]}]][<{{<>(
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[({<<[{{{<(<<<{}{}>{[]}>({()[]}({}()))>{<[{}()][{}{}]>[[<>{}](<><>)]})>(<<[<{}<>>]{<[]{}>([
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<(({{[(({(<{{([]<>)[{}<>]}}{<<[][]>{<>{}}>({<>()}{<>()})}>{[[[[]<>]](<<>{}><()<>>)]})({<([<
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<<[(<<([([({<[{}[]]<{}()>]{<[][]>[[][]]}}({<()()>{()[]}}({<>()}((){})))){{(<()[]>[[]])(<<>{}>)}{<{{}[
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{{(<<{([{[{(([{}{}]((){})))}{<[(()())({}())][{()<>}]>}][{<{({}())<[]()>}[[<><>]{<>()}]>}]}[((<
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<[[{(([<<<{<([[][]][()[]}){{[]<>}(()[])}>([(<>[]){{}[]}]{({})<<>{}>})}[[<{<>[]}<[]()>>][{{()[]}}[{{}()
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{{([{<((<{<[<<()[]>(<>())>{[<>()][[]<>]}]([({}[]][<>()]][(<>())<()<>>])>({<[[]<>]>[[()()][[][]]]}<[<[]()
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[<<({<{[[({[<((){})[{}]><<[][]>{()[]}>][<({}{})>[[{}()]{{}<>}]]}{{<<[]()>([]())>{{<>()}{<>[]}}
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[({[({{(<(<{<<<>[]><<>()>>({()[]}{()[]})]>){(([[()()](<>{})]{([][])<()()>})(({()[]}<{}()>)[
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{<(<{<{(({{[(<<>()>{<>[]})(({}())[[]()])]([({}())(<>{}}])}{{<{{}()}[[][]]>{{[]{}}<<>[]>}}}}{<[{<
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[((<{{{([<<<[({}[])[()<>]]<{<><>}<<>[]>>>>>[(<{[{}]<[]()>}{[<>]<[][]>}>{{(()[])}(([][]){<>[]}
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{<((<{(({{{<([[][]]{{}{}}){{[]{}}{[]<>}}>[{<{}()>([]<>)}(<[][]>{<>[]})]}<([[()[]]]{{()()}([][])})([{[][]}<{}
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[{([(([<{([(<{[]{}}[()[]]>(([])[<><>]))])[[{(({}())<[]<>>)<({}())[()[]]]}([<()()>[<><>]](<[]<>><<>()>))](
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{{[[[(((([[{[([]())[()>]}(<<()<>>({}<>)>[{<>[]}[()<>]])]<<[{[]()}{[]{}}]>({[{}{}]([]{})}[{(){}}{{}[]}])>]
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[({[<(<[{[{({<<>{}>{{}{}]}[(<>())[<>{}]])(((<>[])<{}[]>)[<()()>[{}{}]])}[[<<{}<>>{{}[]}>[(<><
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[{<((([{{{(<{[{}<>][[]<>]}]){[({{}<>})<<{}()>{{}{}}>]{<([]<>)<[]{}>>[<(){}>(<>[])]}}}(([{[<>]<[]()>}([<>{}][
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{(([<{[[<({[<<<>{})([]<>)>[{[]()}(<><>)]][<(()[])>{(<>{}){[][]}}]}<{[([]())<[]{}>]<{[]()}(()
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<{[{[<<{[(([{(<>{})<[][]>}<([]<>)(<><>)>](<[<>[]][[]<>]>[[[][]]({}[])])))]{[[{({<>}[()<>])[<[]<>>{[]()}]}(
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{(<(({{(<{<[<<<>{}>[<>[]]>([[]][[][]))]([(<>{})({})])><[[{{}[]}({}[])][{<><>}<{}>]](<([][]){[]}><{[][]
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{[[(({{({<(<(({}<>){{}}){([])({}{})}>)>}<<[([{<>[]}[[]<>]])<({[]()}[{}<>])<[{}{}][[][]]>>][{<
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({[{[{[<([{{[[()()](<>{})]((<>{})(()<>))}[({[]()}({}{}))[<<><>>{(){}}]]}<((([]){()<>}))>])><<<
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[{<({([<(([{[{[]<>}][(()<>)<<>[]>]}]<(<({}{})(()())>[([][])[(){}]]){<<()[]>>}>))<[{<[[[]{}]([]())][{{}{}}
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{[(((<<{[[(([<[]()>(<><>)])(<<<>{}>[<>{}]>{<<>><[]<>>}))[{(<<>()>[[]<>])(([]<>){<><>})}[((<>)[[][]])(([]{})[[
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{([<<{((({[[[(<>{})[()()]]]]<[([{}{}]<[]<>>){<<>[]><()[]>}]>}{<<{<()()>}>{{([]<>)[[]<>]}{<()[]>[[
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<<[(<(<[({<{<([]())(<>[])>[{{}<>}((){})]}>{({(<>())({}<>)})}}{<{<(<>[])><{[]{}}<{}()>>}[{(())(()[])}[({}())<[
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{{([{{<{{<[(<[[][]]{{}()}>)[<{[][]}<{}[]>}({{}()}{()()})]][{[[[]()]{()[]}]<{{}}([]())>}{(<
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[<<{{<<<[[[({[{}()]}{<{}[]>(()())}){({[]<>}([]{}))<({}{})(<>())>}]{({<[]<>>([]<>}}{{[][]}[[
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(({[[[{<(<{[[([][]){<>[]}]([[]<>])]<{[{}()]<{}[]>}[({}<>)<{}()>]>}[[(<<>[]>[<>()]){<()<>>{{}{}}
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{<{([[<<(<<{<[()<>][()()]>[[()[]]({})]}>>)>>]])<{({<<[[<([(){}]<[]()>)<<[][]>[<><>]>]]]>[({[{<()<>><
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{({([(([({{((<()()>([][])))}{{{<<>>}[[()<>](()())]}<{<<><>><{}[]>}>}})({<[{<{}{}>[<>()]}[{{}<>}[{}{}]]]({(
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{{(<{<[[(<(<[(<><>){[]()}]>)(([<{}{}>[[]<>]][<<><>>(<>{})])<<[[][]]><<[]()>{<>}>>)><<{<({}{})[<><>]>}<
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{[[[[{{(<<{<{{[]{}}<{}[]>}[<()[]>[<>[]]]>{([{}()])(<{}{}>{<>{}}]}}[<<{<>{}}<()()>>{[<>]}>{[(<>{})<()<>>]
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((<[{<[({<({[(()())(<>[])]<[<><>]{[][]}>}([([])[{}()]]<{<>()}{{}<>}>))><([<([]{}){[]}>[{[]}[[][]]]
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[<[<({[{{({<[(<><>)<[][]>](<<>{}>(<>()))>}(<<<{}{}>[{}<>]><<[]{}>[<><>]>>(((<>())<()>))))}}[{[(<[{()[]
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[{<[<(<<{[<([<{}[]><<>()>][[[]()]<()[]>])>[(<[(){}][{}{}]>{[<>{}]<{}()]})]]({[(<<>>)<[{}<>]<[]{}>>]<<<(){}><
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[<{<{<<<(((([<()>{<><>}][(()())[{}()]])[[{{}()}<()()>][{()}]])<(<<[][]>><<{}()>[{}[]]>)[([[][]][<>[]]
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({{<[{[{(<<[((<>[])<[]()>)[[{}{}]({}{})]]>([[(()<>)<<>{}>]{(()<>)[{}()]}]{(([]())([]()))[[[]<>][<>{}]]})>
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({<<[<{{[[([{<()<>>}])[<{<()[]>}[{(){}]<{}[]>]>[[[[][]]](<[]<>>{<><>})]]]<[{[([]{})<()()>]}(<({}<>){<
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<([<<{(<({{{<({})(<><>)>{{<>[]}<[][]>}}<([()[]]({}{}))>}})>{{({[[{{}<>}]{[(){}][(){}]}]([{{}{}}({}{})][[
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{[({<[<[([[<<({}{}){()[]}>{([]<>)}>{(({}<>)<[][]>)[{{}<>}(<>{})]}]])[({[(([]<>){<><>})(([]<>)<[
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<[[[{<<({<{([<()[]><[]()>])<[{{}()}<()[]>](([]<>){[]()})>}>{[[(<{}()){<>{}})[<[]()><()<>>]]{[{[][]
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{[(<{<{{{[(((({}[]){(){}})(<(){}>{{}<>})){([[]<>]{[]<>})[[<>{}]{<>()}]}){(([<><>][{}[]])([<>]
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[<({[[[[{<<{[{[]()}<[][]>](<{}<>>[{}{}])}{({{}()}((){}))([()<>]<<>()>)}>>[<([{()()}{[]()}]{[<
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{<{{([{<([<[{<(){}>(()[])}<<(){}>{{}{}}>][{[(){}](<>())}[{<><>}<[]{})]]>({({[]()}[[][]])<{<>()}<[]()
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[{{<[{<((([{{<[]{}>[[]{}]}{<<><>>[<>[]]}}](({<<>{}><[]>}<(<>)>)[((<>{}){<>[]})[{{}<>}<[]()>]]
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([<<{([<[<<([([]{})[{}()]]<(<><>)<()<>>>)><([{{}<>}[(){}]]([{}<>](<>{}))){<<[]<>>{()<>}>[<()<>>(<>)
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{{({({(<{({<{[()()]{[]{}}}[<{}[]>]>{[{<>[]}{{}()}](<<>{}>[{}<>])}}[{<[{}{}]<<>[])>([{}[]]{{}[]})
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<{((<([<[{([([<>{}]([]<>))]{{<{}[]>[[][]]}})([(<{}{}>{()<>})[[[]()][{}{}]]}[{{{}()}<<>()>}
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[{<[<<({({<[{<<>[]><<>{}>}<{<><>}<{}()>>][([[]()]{<>{}})]>{(<[{}[]]([]<>)>}<<[{}[]][{}<>]>{{{}()}{<>[]
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[{<<([([[{<((({}<>)[{}()])[{[]()}(<><>)])<[<()<>)(<>())]>>([((<>()))[[{}]([][])]]<([<>()]<()()>)>)}(([<{
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(<(([{<{(<([[[<>[]]{[][]}][((){})]])([((()())({}{}))(<<><>>)]<([[]<>]((){}>)({[]{}}{<>()})>)>)({{{{[
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{<<{{(<{[<{{<({}[])<{}[]>><([]())<{}<>>>}<([[]{}]<()<>>)>}>{<(([<>[]]([]()))<{{}{}}(<>[])>){[([]()
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{{(({<{[{[[[([{}<>](()))]{{{{}{}}{<>{}}}[[{}{}]([]<>)]}][([(<><>)[[][]]])<<(()())(()<>)>[([]()){()
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(<[{<<[<<[(<{{<>{}}{[]<>}}[{[][]}[()[]]]>[<(<>())((){})>{({}{}){[]<>}}])]]>((([(<[<>{}]{{}<>}>{(
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(<<{{<[{[(<<<[{}{}]([][])>[{()<>}[{}]]>{({()[]})(<()<>>(()))}>)}}][[<([({<{}>[<>[]]}){({()[]}(()[])){
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<(<([<<({[{(((<>[])<<><>>){{<>{}>}){{[()[]]<{}{}>}{({}{}){<>()}}}}[(<<<>{}>[{}{}]>(<()[]>[<><>])
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[{[<<{[<(([[({<>{}}(<>))<<()()>[<>{}]>][{{[]{}}}<<<>()>({})>]]><{([(<><>)]<<(){}>{{}{}}>){{{{}[]}<<><>>}[[()
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[[[[<{(({{(<<<{}><[]{}>>((()[])[{}()])><<{[]<>}{<>[]}>[(<>()){{}<>}]>)(({(<>())({}[])}){[<(){}><[]{}>][[
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<{[[<{<[<<[{([()()]{()()})[{[]()){{}{}}]}][{({<>{}})<[()()]{[]()}>}<[[(){}][{}[]]]{{<>[]}}>]><(([(()())
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{<<(<(([<<{[{<[][]>}{([]())[()<>]}]{[[<>]<[][]>](([]{})(()[]))})[<<[{}<>]{<>{}}>[([]<>)[{}[]]]><(
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[([({([([{<({<<>{}>[{}]})<[({}{})({}{})][{{}()}(<>{})]>><{{([]{})([][])}[[{}[]]<<><>>]}<((<><>)[()
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([[[[{{{{{{{<<(){}>{<><>}}{[{}[]]({}[])}}<({{}[]}[<>]){<<>{}>{()[]}}>}{{{(()[])}{{{}}}}{[([]())
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(<{(({<<<{(<[<[][]>]<<{}<>>{{}{}}>><[{[]<>][<>[]]][[<><>]<[]()>]>)[(<([]{}){[]{}}>({{}{}})
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<((({[(<<{({(([][])){[[]<>]}}<(({}{})({}{}))(<[]()>[()()])>)}>({(<[([]())[[]<>>]([[]{}]<[]<>>)><{{()[]}
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<{(<<({[(({{({<>[]}(<>{}))<<()[]>{<><>}>}<<<()[]>[(){}]>>})<{({(<>[]){<>[]}}[[<><>]])<[(())(<>[])
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[([<[{[[{({{({[]<>}{[]()})([{}{}](()<>))}{(<[]<>><<>[]>)}})}<<([<[<>()]<[][]>>([[][]]{[]{}})](<<()
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<<<(<({[{[{{(<{}>[{}{}])(([][])[(){}])}{([{}<>](<>))}}]}[<<{<((){}){[]{}}>({{}<>}{[][]})}<{{()()}<<><>>}>>{((
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<<<{{{((<[<<{<[]{}>}><[({}{})[[]<>]]>>[<([<>()](()))<(<><>)(()())>>[{<()<>>{()()}}]]]({(({[]{}}({}[])))<({{
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[<{[{[[{{{[{({<>[]}<[][]>)[{(){}}{{}()}]}<[[()()][{}()]](({}<>)[()()])>]<({<{}<>>({})}([()<>])){[{()<
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<{{{{([(([{{{<{}[]>(()[])}{({}[])({}[])}}}])<{({<({}<>]<<>{}>>[<()<>>({}())]}[<<[]()>[<>()]>(<()<>>{<>[]})])
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((([({[<[[([([<>[]]<[]<>>)(<()<>>)]{[{<>)[()()]][([]()){[]<>}]})]][{((<[<>[]]{<>()}>[<()<>>[{
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<[<{[[<[<<{{(<[]{}>){[()]({}{})}}(<[()[]]{[]()}>[<()[]>])}{{({[]<>>([]{})){{()<>}{<>[]}}}(<(<
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<[<<<[{<[<[[{(()<>)[()<>]}]({{()<>}({}())}[[{}()]])][{([<>{}]){({}[])([]{})}}]>[[[<(<>{})<(){}>>]}]]
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<<[[[{[<[(<<<{<><>}(()[])>{{()()}[()[]]}>>)[<{[<[]()>({}{})]{{{}[]}[[]]}}{{{[]<>}{()()}}}>[[[[(){}]({}<>)]{
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<[<((<<<{<[({[[][]]<{}{}>})({{<>{}}[()<>]}(({}{})[[]()]))]({{(<><>)<<>()>}{[[]{}]}}({(()())[{}()
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package main
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import (
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"log"
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"os"
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"sort"
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"strings"
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"github.com/thoas/go-funk"
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)
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func main() {
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inputBytes, _ := os.ReadFile("input.txt")
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input := strings.Split(string(inputBytes), "\n")
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log.Println("Puzzle 1:", puzzle1(input))
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log.Println("Puzzle 2:", puzzle2(input))
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}
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func puzzle1(input []string) int {
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correctClosingChar := map[rune]rune{'(': ')', '[': ']', '{': '}', '<': '>'}
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points := map[rune]int{')': 3, ']': 57, '}': 1197, '>': 25137}
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count := 0
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for _, line := range input {
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stack := []rune{}
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// Check every character in the line
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for _, char := range line {
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// If the character is a opening bracket, push it to the stack
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if char == '(' || char == '[' || char == '{' || char == '<' {
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stack = append(stack, char)
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continue
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}
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// If the character is a closing bracket, pop the stack
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if char == ')' || char == ']' || char == '}' || char == '>' {
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// Check if the char is the correct one
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topOnStack := stack[len(stack)-1]
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if char != correctClosingChar[topOnStack] {
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// It isn't, so add the points of the closing char to the count
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count += points[char]
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break
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}
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// It is, so pop the stack
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stack = stack[:len(stack)-1]
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}
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}
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}
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return count
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}
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func puzzle2(input []string) int {
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correctClosingChar := map[rune]rune{'(': ')', '[': ']', '{': '}', '<': '>'}
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points := map[rune]int{')': 1, ']': 2, '}': 3, '>': 4}
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scores := []int{}
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forlines:
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for _, line := range input {
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stack := []rune{}
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score := 0
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// Check every character in the line
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for _, char := range line {
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// If the character is a opening bracket, push it to the stack
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if char == '(' || char == '[' || char == '{' || char == '<' {
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stack = append(stack, char)
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continue
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}
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// If the character is a closing bracket, pop the stack
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if char == ')' || char == ']' || char == '}' || char == '>' {
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// Check if the char is the correct one
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topOnStack := stack[len(stack)-1]
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if char != correctClosingChar[topOnStack] {
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// It isn't, discard the line and continue with the next one
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continue forlines
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}
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// It is, so pop the stack
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stack = stack[:len(stack)-1]
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}
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}
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// Find correct closing brackets and add their points to the score
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reversedStack := funk.Reverse(stack).([]rune)
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for _, char := range reversedStack {
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score = score*5 + points[correctClosingChar[char]]
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}
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|
// Add the score of the line to the scores
|
||||||
|
scores = append(scores, score)
|
||||||
|
}
|
||||||
|
// Return the middle one from the scores
|
||||||
|
sort.Ints(scores)
|
||||||
|
return scores[len(scores)/2]
|
||||||
|
}
|
|
@ -0,0 +1,17 @@
|
||||||
|
package main
|
||||||
|
|
||||||
|
import (
|
||||||
|
"os"
|
||||||
|
"strings"
|
||||||
|
"testing"
|
||||||
|
|
||||||
|
"github.com/stretchr/testify/assert"
|
||||||
|
)
|
||||||
|
|
||||||
|
func Test(t *testing.T) {
|
||||||
|
inputBytes, _ := os.ReadFile("test.txt")
|
||||||
|
input := strings.Split(string(inputBytes), "\n")
|
||||||
|
|
||||||
|
assert.Equal(t, 26397, puzzle1(input))
|
||||||
|
assert.Equal(t, 288957, puzzle2(input))
|
||||||
|
}
|
|
@ -0,0 +1,10 @@
|
||||||
|
[({(<(())[]>[[{[]{<()<>>
|
||||||
|
[(()[<>])]({[<{<<[]>>(
|
||||||
|
{([(<{}[<>[]}>{[]{[(<()>
|
||||||
|
(((({<>}<{<{<>}{[]{[]{}
|
||||||
|
[[<[([]))<([[{}[[()]]]
|
||||||
|
[{[{({}]{}}([{[{{{}}([]
|
||||||
|
{<[[]]>}<{[{[{[]{()[[[]
|
||||||
|
[<(<(<(<{}))><([]([]()
|
||||||
|
<{([([[(<>()){}]>(<<{{
|
||||||
|
<{([{{}}[<[[[<>{}]]]>[]]
|
Reference in New Issue