#include <bits/stdc++.h>
int main(void) {
  int sum = 0, max = 0, in;
  for (int i = 0; i < 3; i++) {
    scanf("%d", &in);
    if (in > max) max = in;
    sum += in;
  }
  if (sum / 2 == max)
    printf("Yes\n");
  else
    printf("No\n");
  return 0;
}
