#include <stdio.h>

int main(void)
{
        int a,b,c,ab,bc,ac;
        scanf("%d%d%d",&a,&b,&c);
        ab=a+b;
        ac=a+c;
        bc=b+c;
        if(ab==c || ac==b || bc=a)printf("Yes");
        else printf("No");
        return 0;
}
