diff --git a/10/10.py b/10/10.py
new file mode 100755
index 0000000..ecda15f
--- /dev/null
+++ b/10/10.py
@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+# 2021 - Advent Of Code - 10
+
+def parse_file(file):
+    with open(file) as f:
+        i = 0
+        for line in f.readlines():
+            count_open = {'(': 0, '[': 0, '{': 0, '<': 0}
+            chunks = []
+            for c in line.strip():
+                if c in close_sign.values():  # open signs
+                    chunks.append(c)
+                if c in close_sign:
+                    last_open = chunks.pop()
+                    if close_sign[c] != last_open:
+                        print(f'found corrupted chunk at line {i}: {line.strip()}')
+                        count_score[c] += 1
+
+
+close_sign = {')': '(', ']': '[' , '}': '{', '>': '<'}
+count_score = {')': 0, ']': 0, '}': 0, '>':0}
+score_table = {')': 3, ']': 57, '}': 1197, '>':25137}
+
+
+# parse_file('input_example.txt')
+parse_file('input.txt')
+# print_hmap(heightmap)
+
+print(f'char score {count_score}')
+score = 0
+for c in close_sign:
+    score += count_score[c] * score_table[c]
+
+print(f'score: {score}')
diff --git a/10/input.txt b/10/input.txt
new file mode 100644
index 0000000..3de0014
--- /dev/null
+++ b/10/input.txt
@@ -0,0 +1,102 @@
+[(<[(({{<{{[{({})}{<{}{}><()<>>}]}[{[({}{})]([{}()](<>{}))}[<<[]()]>[<[]<>>{[]()}]]]}{[[[{[][]}{[]()}]
+(<<{((({<(<{([()[]]<[]<>>)}>({[{<>()}]<[<>()]({}())>})){{[(<<><>>{<>()})<{[]{}}>][{[[]()]<[]()>}
+{({([({[[([<{(())([][])}<(<>())[[][]]>>{{{{}{}}{<>{}}}({{}<>}<<>()>)}]<<((<><>))<<[]>((){})>>[<{{}{}}
+(<[{{{[[[<[[[([]<>)]{{()()}<()()>}][({()<>}(()()))[<[][]>[[]<>]]]]([{[(){}]}(<[]{}>{{}()))]<
+{(<<({<{<<[[<[[]{}]>]<[<{}{}>[{}[]]]{[<>{})({})}>]><([[{(){}}{()[]}]])>><{({<[{}()]<{}[]>>(<
+<<[[<<[({[<[{{[]()}[()()]}[<{}{}>[<>]]]><[[(<>[])]]{{{{}<>}[{}()]}{<()>[{}[]]}}>](({<((){}
+<{[[((<{{[[(([(){}][()<>]))[(<()()>[[]<>]){[(){}][()[]]}]]]<([<[{}{}]([]<>)><<{}<>>{{}{}}>]<({[]{}}[{}{}]
+<<<{<[[[[([<([[]<>])[[<>{}][[]<>]]>{{[{}{}]}[[[]()]]}][[<((){})<[]<>>>]<{[(){}][[]<>]}<<[][]](()())>>]){<((
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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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+((<[{(({<{<(((<>)<{}[]>)([<>[]]{()()}))>}>}[[<[{({[]{}}{[][]})}(<{{}[]}(()[])>(({}()){<>[]}))]<<([{}][()[]])>
+<(({<[[<{{<<<[{}{}]{(){}}>{<()<>>[<>{}]}>>}[[{[([][])(()())]<[()<>]>}{<<(){}>[()[]]>([[]<>]<[][]>)}][{
+<{((<({{({<<{([]<>]{<><>}}((<>[]){<><>})>>{<{[{}{}][<>[]]}>({{<><>}[[]]}<{(){}}[<>{}]>)}})}})<((<{[(<<()(
+[(({({{([([{{<[]<>>([][])}<[()<>]>}{(({}())[<>()])}]<({{{}{}}}({{}<>}<[]{}>))>)(<[[<()>((){})]
diff --git a/10/input_example.txt b/10/input_example.txt
new file mode 100644
index 0000000..b1518d9
--- /dev/null
+++ b/10/input_example.txt
@@ -0,0 +1,10 @@
+[({(<(())[]>[[{[]{<()<>>
+[(()[<>])]({[<{<<[]>>(
+{([(<{}[<>[]}>{[]{[(<()>
+(((({<>}<{<{<>}{[]{[]{}
+[[<[([]))<([[{}[[()]]]
+[{[{({}]{}}([{[{{{}}([]
+{<[[]]>}<{[{[{[]{()[[[]
+[<(<(<(<{}))><([]([]()
+<{([([[(<>()){}]>(<<{{
+<{([{{}}[<[[[<>{}]]]>[]]