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    without any modules

    n = int(input()) words = [input() for i in range(n)]

    result = {}

    for word in words: if word not in result: result[word] = 1 elif word in result: result[word] += 1

    print(len(result)) for i in result.values(): print(i, end = ' ')

    print(len(result)) for i in result.values(): print(i, end = ' ')