#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>

using namespace std;

#define int long long
#define rep(i,n) for(int i = 0; i < (n); i++)
#define INF (long long)(1e18)
#define MOD (int)(1e9+7)

#define yn(f) ((f)?"Yes":"No")
#define YN(f) ((f)?"YES":"NO")

signed main(){
	cout<<fixed<<setprecision(7);
	
	bool flag = false;
	int  Y, M, D;
	
	cin>>Y>>M>>D;
	
	if(1989 <= Y && Y <= 2019){
		if(Y == 1989){
			if(M == 1){
				if(D >= 8) flag  = true;
			} else flag = true;
		} else if(Y == 2019){
			if(M <= 4)flag = true;
		} else flag = true;
	}
		
	cout<<yn(flag)<<endl;
	
	return 0;
}