#include <iostream>

using namespace std;

int y, m, d;

int main(void)
{
	cin >> y >> m >> d;
	
	if(y == 1989){
		if(m == 1 && d < 8) goto no;
		else goto yes;
	}
	else if(y == 2019){
		if(m >= 5) goto no;
		else goto yes;
	}
	else if(y > 1989 && y < 2019) goto yes;
	else goto no;
	
	yes:;
	cout << "Yes" << endl;
	return 0;
	
	no:;
	cout << "No" << endl;
	return 0;
}