题解 | #统计字符#

s = input()
count1,count2,count3,count4 = 0,0,0,0
for i in s:
    if i.isalpha():
        count1 += 1
    elif i.isdigit():
        count3 += 1
    elif i == ' ':
        count2 += 1
    else:
        count4 += 1

print(count1)
print(count2)
print(count3)
print(count4)