8-1

# ---------------------------------
# СТАТИСТИКА СИМВОЛОВ В ТЕКСТЕ
# ВЫПОЛНИЛ: ДМИТРИЙ МИШУТИН, КЭ - 101
# ---------------------------------


inp = open("input.txt", "r")
out = open("output.txt", "w")

letters = 0
digits = 0
chars = 0

arr = list(inp.read())

for i in range(len(arr)):
    if ord("A") <= ord(arr[i]) <= ord("Z") or ord("a") <= ord(arr[i]) <= ord("z"):
        letters += 1
    if ord("0") <= ord(arr[i]) <= ord("9"):
        digits += 1
    if arr[i] in [".", ",", "?", "!"]:
        chars += 1

out.write("Count of letters: " + str(letters) + "\n")
out.write("Count of digits: " + str(digits) + "\n")
out.write("Count of punctuation marks: " + str(chars) + "\n")

inp.close()
out.close()