题解 | 统计字符

s = input()
cntA = 0 
cntS = 0
cntD = 0
cnt = 0 
for c in s:
    if c.isalpha():
        cntA += 1
    elif c.isdigit():
        cntD += 1
    elif c.isspace():
        cntS += 1
    else:
        cnt += 1
print(cntA)
print(cntS)
print(cntD)
print(cnt)