题解 | #统计字符#

while True:
    try:
        s = input()
        c = [0,0,0,0]
        for i in s:
            if i.isalpha():
                c[0] += 1
            elif i.isspace():
                c[1] += 1
            elif i.isdigit():
                c[2] += 1
            else:
                c[3] += 1
        for i in c:
            print(i,end='\n')
    except:
        break