#include <bits/stdc++.h>
using namespace std;

int a, b, c, d;
int main(){
	cin >> a >> b >> c >> d;
	if(a*b*c<d) cout << "No";
	else if((a+b)+c) cout << "Yes";
	else if((a+b)-c==d) cout << "Yes";
	else if((a+b)*c==d) cout << "Yes";
	else if((a+b)/c==d) cout << "Yes";
	else if((a-b)+c==d) cout << "Yes";
	else if((a-b)-c==d) cout << "Yes";
	else if((a-b)*c==d) cout << "Yes";
	else if((a-b)/c==d) cout << "Yes";
	else if((a*b)+c==d) cout << "Yes";
	else if((a*b)-c==d) cout << "Yes";
	else if((a*b)*c==d) cout << "Yes";
	else if((a*b)/c==d) cout << "Yes";
	else if((a/b)+c==d) cout << "Yes";
	else if((a/b)-c==d) cout << "Yes";
	else if((a/b)*c==d) cout << "Yes";
	else if((a/b)/c==d) cout << "Yes";
	else cout << "No";
	return 0;
}

样例都过，但还是不能AC