#include <bits/stdc++.h>
using namespace std;

int main() {
    int y, m, d;
    cin >> y >> m >> d;
    if (1989 < y && y < 2019) {
        cout << "Yes" << endl;
        return 0;
    }
    if (y == 1989) {
        if (1 < m) {
            cout << "Yes" << endl;
            return 0;
        }
        if (m == 1) {
            if (d <= 8) {
                cout << "Yes" << endl;
                return 0;
            }
        }
    }
    if (y == 2019) {
        if (m <= 4) {
            cout << "Yes" << endl;
            return 0;
        }
    }
    cout << "No" << endl;
    return 0;
}