#include <bits/stdc++.h>
using namespace std;
int main() {
  int num[3];
  int a, b, c;
  while (~scanf("%d%d%d", &num[0], &num[1], &num[2])) {
    sort(num, num + 3);
    if (num[2] == num[1])
      printf("Yes\n");
    else {
      if (num[0] + num[1] == num[2])
        printf("Yes\n");
      else
        printf("No\n");
    }
  }
  return 0;
}
