题解 | #统计字符#

while True:
    try:
        a = input()
        eng_sum = 0
        space_sum = 0
        digit_sum = 0
        symbol_sum = 0

        for x in a:
            if x.isalpha():
                eng_sum += 1
            elif x.isspace():
                space_sum += 1
            elif x.isdigit():
                digit_sum += 1
            else:
                symbol_sum += 1
        print(eng_sum)
        print(space_sum)
        print(digit_sum)
        print(symbol_sum)

    except:
        break