2_11

#include <iostream>
using namespace std;

int main() {
    int birth_day, birth_month, birth_year;
    int current_day, current_month, current_year;

    cout << "Введите дату рождения: ";
    cin >> birth_day >> birth_month >> birth_year;
    cout << "Введите текущую дату: ";
    cin >> current_day >> current_month >> current_year;

    int age = current_year - birth_year;

    if (current_month < birth_month || (current_month == birth_month && current_day < birth_day)) {
        age--;
    }

    cout << "Вам " << age;

    if (age % 10 == 1 && age % 100 != 11) {
        cout << " год";
    } else if (age % 10 >= 2 && age % 10 <= 4 && (age % 100 < 10 || age % 100 >= 20)) {
        cout << " года";
    } else {
        cout << " лет";
    }

    return 0;
}