---

count = 0
with open('res.txt', 'r') as file:
    for line in file:
        try:
            amount = int(line.strip())
            first_digit = str(amount)[0]
            last_digit = str(amount)[-1]
            if first_digit == last_digit:
                count += 1
        except ValueError:
            pass # Игнорируем строки, которые не удалось преобразовать в число

print(count)