题解 | #统计字符#

import sys

for line in sys.stdin:
    line=line.strip()
    c_count=0
    s_count=0
    n_count=0
    o_count=0
    for c in line:
        if c.isalpha():
            c_count+=1
        elif c.isspace():
            s_count+=1
        elif c.isdigit():
            n_count+=1
        else:
            o_count+=1
    print(c_count)
    print(s_count)
    print(n_count)
    print(o_count)