#include <bits/stdc++.h>
#define PI 3.14159265359
using namespace std;

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

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

	cout << s << endl;
}