#include<iostream>
#include<algorithm>
#include<cmath>
#include<cstring>
#include<cstdlib>
#include<ctime>
#include<cstdio>
#include<string>
//#include<string>
//#include<sstream>
using namespace std;

int main()
{
	int a[3];
	for(int i=0;i<3;i++){
		scanf("%d",&a[i]);
	} 
	sort(a,a+3);
	if(a[0]+a[1]==a[2]){
		printf("Yes\n");
	}
	else{
		printf("No\n");
	}
}