23 lines
500 B
Python
23 lines
500 B
Python
#!/usr/bin/env python3
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import re
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NUM = 9
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lines = (x for x in open("input.txt"))
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stacks = [[] for _ in range(NUM)]
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for line in lines:
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if '[' not in line:
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break
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for i, v in enumerate(line[1::4]):
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if v != ' ':
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stacks[i].append(v)
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next(lines)
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for line in lines:
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a, s, t = map(int, re.search(r"move (\d+) from (\d+) to (\d+)", line).groups())
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stacks[t-1] = stacks[s-1][:a]+stacks[t-1]
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stacks[s-1] = stacks[s-1][a:]
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print(''.join(i[0] for i in stacks))
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