13 lines
266 B
Python
13 lines
266 B
Python
import sys
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input = sys.stdin.readline
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ans = []
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for _ in range(int(input())) :
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dist = 0
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for a, b in zip(input().rstrip(), input().rstrip()) :
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dist += (abs(int(a) - int(b)))
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ans.append(dist)
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for i in ans :
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print(f'Hamming distance is {i}.')
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