#include <iostream>
#include <string>
using namespace std;

int
main() {
    int y, m, d;
    cin >> y >> m >> d;
    if (1989 <= y && y >= 2019) {
        if (y == 1989) {
                if (m == 1 && d >= 8) {
                        cout << "YES" << endl;
                        return 0;
                }
                if (m != 1) {
                        cout << "YES" << endl;
                        return 0;
                }
                cout << "NO" << endl;
                return 0;
        }
        if (y == 2019) {
                if (m == 4 && m <= 30) {
                        cout << "YES" << endl;
                        return 0;
                }
                if (m < 4) {
                        cout << "YES" << endl;
                        return 0;
                }
                cout << "NO" << endl;
                return 0;
        }
        if (y != 2020 && y != 1989) {
                    cout << "YES" << endl;
                    return 0;
        }
    }
    cout << "NO" << endl;
    return 0;
}