Python的哦~

x=input()
a=0;b=0;c=0
for i in x:
    if i=="?":
        break
    if "0"<=i<="9":
        b+=1
    elif "a"<=i<="z" or "A"<=i<="Z":
        a+=1
    else:
        c+=1
print(a)
print(b)
print(c)