#include <bits/stdc++.h>
int main() {
  int a[3], i, SUM;
  for (i = 0; i < 3; i++) {
    if (scanf("%d", &a[i]) == 1)
      if (a[i] < 0 || a[i] > 100) {
        printf("error");
        continue;
      }
    SUM = SUM + a[i];
  }
  SUM = SUM / 2;
  if (SUM == a[0] || SUM == a[1] || SUM == a[2]) {
    printf("Yes\n");
  } else {
    printf("No\n");
  }
  return 0;
}
