题解 | #统计字符#

in_str = str(input())
count_alp = 0
count_emp = 0
count_dig = 0
count_oth = 0
for i in in_str:
    if(i.isalpha()):
        count_alp += 1
    if(i.isdigit()):
        count_dig += 1
    if(i == " "):
        count_emp += 1
print(count_alp)
print(count_emp)        
print(count_dig)
print((len(in_str)-count_alp-count_emp-count_dig))