#include <bits/stdc++.h>
int main(void) {
  int a, b, c;
  scanf("%d %d %d", &a, &b, &c);
  int x = a + b;
  int y = b + c;
  int z = c + a;
  int s = a + b + c;
  if (x >= c && y >= a && z >= b) {
    if (s % 2 == 0) {
      printf("YES");
    }
  } else {
    printf("NO");
  }
  return 0;
}
