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