题解 | #统计字符#

var = input()

w_count = 0
d_count = 0
k_count = 0
for i in var:
    if (i>='A' and i <= 'Z') or (i >='a' and i <='z'):
        w_count = w_count + 1
    if i == " ":
        k_count = k_count + 1
    if i >='0' and i <= '9':
        d_count = d_count + 1
print(w_count)
print(k_count)
print(d_count)
print(len(var) - w_count - k_count - d_count)