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18 lines
272 B
Python
Executable file
18 lines
272 B
Python
Executable file
#! /usr/bin/python
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import sys
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def xor(s, t):
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return ''.join(chr(ord(a) ^ ord(b)) for (a,b) in zip(s,t))
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acc = None
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for line in sys.stdin:
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l = line.strip().decode('hex')
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print l
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if not acc:
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acc = l
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else:
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acc = xor(acc, l)
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print acc
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