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

int main(){
   int Y,M,D;
   cin >> Y >> M >> D;
    if (Y>1989 && M>1 && D > 8 || Y<=2019 && M<=4 && D<=30){
    	cout << "Yes" << endl;
    }else{
    	cout << "No" <<  endl; 
    }
}