#include <stdio.h>
#include<string.h>
int main()
{
long long int a,b,c=0,d=0,w=0,i,str1=0,str2=0,flag,j,count=0,k,n,sum=0;

scanf("%lld %lld %lld",&a,&b,&c);
if((a+b==c || b+c==a || a+c==b )   
{
    printf("Yes\n");
}else{
    printf("No\n");
}
 return 0;
}