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    1. using default dict
    2. from collections import defaultdict
    3. n =int(input())
    4. li = []
    5. my_dict = defaultdict(int)
    6. for i in range (n):
    7. i = input()
    8. li.append(i)
    9. for i in li:
    10. my_dict[i] +=1
    11. print(len(my_dict)) print(" ".join(map(str,my_dict.values())))