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    1. from collections import Counter
    2. n =int(input())
    3. li = []
    4. count_li = []
    5. for i in range(n):
    6. i = input().lower()
    7. li.append(i)
    8. counter = Counter(li)
    9. counter_elements = list(Counter(li).keys())
    10. for i in counter_elements:
    11. count_li.append(str(counter[i]))
    12. print(len(counter_elements))
    13. print(" ".join(count_li))