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

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

	string ans = "No";
	if( 1989 < Y && Y < 2019 ) ans = "Yes";
	else {
		if( Y == 1989 && M > 1 ) ans = "Yes";
		else if( Y == 1989 && M == 1 && D >= 8 ) ans = "Yes";
		else if( Y == 2019 && M < 4 ) ans = "Yes";
		else if( Y == 2019 && M == 4 && D <= 30 ) ans = "Yes";
	}

	cout << ans << endl;
}