#include<iostream>
#include<string>
#include<algorithm>
#include<cctype>
#include<set>
#include<bitset>
#include<math.h>
#include<map>
#include<queue>
#include<iomanip>
using namespace std;

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