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# Enter your code here. Read input from STDIN. Print output to STDOUTimportcollectionsn,m=map(int,input().split())d=collections.defaultdict(list)foriinrange(n):d[input()].append(i+1)forjinrange(m):B=input()key=d.keys()if(Binkey):print(*d[B])else:print(-1)
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DefaultDict Tutorial
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