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


int main(){
        int Y,M,D;
        cin >> Y >> M >> D;

        bool h = 0;

        if(Y>1989&&2019>Y){
                h = 1;
        }else{
                if(Y==1989){
                        if(M>1){
                                h = 1;
                        }else{
                                if(D>=8){
                                        h =1;
                                }
                        }
                }else if(Y == 2019){
                        if(M<=4){
                                h=1;
                        }
                }
        }
        if(h==1){
                cout << "Yes" << endl;
        }else{
                cout << "No" << endl;
        }
}