#include <iostream>
using namespace std;

int main(){
    int y, m, d; cin >> y >> m >> d;
    bool ans = false;
    if(1989 < y && y < 2019) ans = true;
    else if(y == 1989){
        if(1 < m || (m == 1 && 8 <= d)) ans = true;
    }else if(y == 2019){
        if(m < 4 || (m == 4 && d <= 30)) ans = true;
    }
    cout << (ans ? "Yes" : "No") << endl;
    return 0;
}