题解 | #统计字符#

while True:
    try:
        s=input()
        alphas,digits,blanks,others=0,0,0,0
        for i in s:
            if i.isdigit():
                digits+=1
            elif i.isalpha():
                alphas+=1
            elif i == ' ':
                blanks+=1
            else:
                others+=1
        print(alphas,blanks,digits,others,sep='\n')
    except:
        break