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

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