Challenge - #51 - Word Order

 # Enter your code here. Read input from STDIN. Print output to STDOUT

from collections import OrderedDict
od= OrderedDict()

for i in range(int(input())):
    word = input()
    if word not in od:
        od[word] = 1
    else:
        od[word] += 1

print(len(od))
print(*od.values())

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