#include <iostream>
#include <vector>
#include <map>
#include<string>
#include<algorithm>
#include<math.h>
#define ll long long
#define P pair<int,int>
#define lP pait<ll,ll>
using namespace std;
int main() {
    int l,m,n;
    bool f=0;
    cin>>l>>m>>n;
    if(l==1989){
        if (m==1 and n<8) f=0;
        else f=1;
    }
    else if(l>1989 and l<2019) f=1;
    else if (l==2019){
        if(m<4) f=1;
        else  if(m==4 and n<=30) f=1;
    }
    
    if(f)  cout<<"Yes"<<endl;
    else cout<<"No"<<endl;
    return 0;
}