#include<iostream>
using namespace std;
int main(){
     int a,b,c,d;
     cin>>a>>b>>c>>d;
    if(a+b>10){
        cout<<a*b<<endl;
    }
    else if(b+c>5){
        cout<<c*d<<endl;
    }
    else if (d<10||a*c>100){
        cout<<"Yes"<<endl;
    }
    else{cout<<"No"<<endl;}
	return 0;
    }