#include<iostream>
using namespace std;

int main()
{
    int y,m,d;
    cin>>y,m,d;
    if(1989<y||y<2019)
    {
        cout<<"Yes";
    }
    else if(y==1989)
    {
        if(8<=d)
        {
            cout<<"Yes";
        }
        else
        {
            cout<<"No";
        }
    }
    else if(y==2019)
    {
        if(m<5)
        {
            cout<<"Yse";
        }
        else
        {
            cout<<"No";
        }
    }
    else
    {
        cout<<"No";
    }
    return 0;
}