#include<iostream>
using namespace std;

int main()
{
	int Y,M,D;
	bool isHeisei=false;
	
	cin >> Y >> M >> D;
	
	if(1990<=Y && Y<=2018)isHeisei=true;
	else if(Y==1989 && (M>=2 || M==1 && D>=8) )isHeisei=true;
	else if(Y==2019 && M<=4)isHeisei=true;
	
	if(isHeisei)cout << "Yes";
	else cout << "No";
	cout << endl;
	
	return 0;
}