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from collections import defaultdict
a,b=map(int,input().split())
dict=defaultdict(list)
for i in range(a):
dict['A'].append(input())
for i in range(b):
dict['B'].append(input())
for i in dict['B']:
target_index=[]
if i in dict['A']:
for index,value in enumerate(dict['A']):
if value==i:
target_index.append(index+1)
print(*target_index)
else:
print(-1)
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DefaultDict Tutorial
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from collections import defaultdict a,b=map(int,input().split()) dict=defaultdict(list) for i in range(a): dict['A'].append(input())
for i in range(b): dict['B'].append(input())
for i in dict['B']: target_index=[] if i in dict['A']: for index,value in enumerate(dict['A']): if value==i: target_index.append(index+1) print(*target_index) else: print(-1)