题解 | #统计字符#

astr = input()
alpha_re = 0
space_re = 0
digit_re = 0
other_re = 0

for cha in astr:
    if cha.isalpha():
        alpha_re += 1
    elif cha == ' ':
        space_re += 1
    elif cha.isdigit():
        digit_re += 1
    else:
        other_re += 1

print(alpha_re)
print(space_re)
print(digit_re)
print(other_re)