#include <bits/stdc++.h>
using namespace std;
int main(void) {
  int A, B, C;
  scanf("%d%d%d", &A, &B, &C);
  if (C == A || C == B || C == (A + B)) {
    printf("Yes\n");
  } else {
    printf("No\n");
  }
  return 0;
}
