20 lines
311 B
Python
20 lines
311 B
Python
from sys import stdin
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n,m=map(int,stdin.readline().rstrip().split())
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noarr=set()
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for _ in range(n):
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s=stdin.readline().rstrip()
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noarr.add(s)
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carr=[]
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for _ in range(m):
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s=stdin.readline().rstrip()
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if s in noarr:
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carr.append(s)
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carr.sort()
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print(len(carr))
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for i in carr:
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print(i) |