#include<bits/stdc++.h>
using namespace std;
#define LL long long
const int N = 1e5 + 10;
const int INF = 0x3f3f3f3f;
int a , b , c , d;
int main()
{
	cin >> a >> b >> c >> d;
	if( a + b > 10 )
	{
		cout << a * b;
	}
	else if( b + c > 5 )
	{
		cout << c * d;
	}
	else if( d < 10 || a * c > 100 ) 
	{
		cout << "Yes";
	}
	else
	{
		cout << "No";
	}
	return 0;
}
//菜鸟驿站
//老六专属