题解 | #统计字符#

import re
while True:
    try:
        s = input()
        print(len(''.join(re.findall(r'[a-zA-Z]+', s))))
        print(len(''.join(re.findall(r' ', s))))
        print(len(''.join(re.findall(r'\d', s))))
        print(len(''.join(re.findall(r'[^a-zA-Z0-9 ]+', s))))
    except:
        break