#include<iostream>
#include<algorithm>
#include<vector>
#include<cmath>
#include<cstdio>
#include<string>

using namespace std;
using ll = long long;

int main(){ 
        int y,m,d;
        cin >> y >> m >> d;
        if(1990<=y&&y<=2018){
                cout << "Yes";
        }
        else if(y==1989){
                if(m==1&&d<8)   cout << "No";
                else cout << "Yes";
        }
        else if(y==2019&&m<=4){
                cout << "Yes";
        }
        else    cout << "No";
        return 0;
}