#include <bits/stdc++.h>
#define int long long
#define ll long long
#define rep(i,n) for(int i=0;i<n;i++)
#define INF LLONG_MAX/3
#define eps LDBL_EPSILON
#define moder (1000000007)
#define pie acos(-1)
#define P std::pair<int,int>
#define prique priority_queue
#define ggr getchar();getchar();return 0;
using namespace std;
int y,m,d;
signed main(){
	cin>>y>>m>>d;
	if(y<1989||2019<y)puts("No");
	else if(y==1989&&m==1&&d<8)puts("No");
	else if(y==2019&&m>4)puts("No");
	else puts("Yes");
	return 0;
}