#include<iostream>
using namespace std;
int main(){
	int a,b,c;
    int s1,s2,s3;
    cin>>a>>b>>c;
	s1=a+b;
	s2=a+c;
	s3=b+c;
	if(s1==c||s2==b||s3==a)
		cout<<"Yes"<<endl;
	else
		cout<<"No"<<endl;
	return 0;
}