Антон Турчаков - Урок 1. Задание 5.

text = str(input())
n = 0
l = 0
for x in text:
    let = x.lower()
    if 'a' <= let <= 'z':
        l = l + 1
print('Букв', l)
for num in text:
    if '0' <= num <= '9':
        n = n + 1
print('Цифр', n)