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