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from collections import defaultdict
n=int(input())
d=defaultdict(list)
for i in range(n):
s=input()
d[s].append(i)
print(len(d.keys()))
print(*list(map(lambda x:len(x),d.values())))
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from collections import defaultdict n=int(input()) d=defaultdict(list) for i in range(n): s=input() d[s].append(i) print(len(d.keys())) print(*list(map(lambda x:len(x),d.values())))