#include <bits/stdc++.h>
using namespace std;
bool C(double A, double B) {
  double diff = A - B;
  return (diff < 1e-12) && (-diff < 1e-12);
}
int main() {
  int a, b, c;
  cin >> a >> b >> c;
  double sa, sb, sc;
  sa = sqrt(a);
  sb = sqrt(b);
  sc = sqrt(c);
  sa += sb;
  bool g = C(sa, sc);
  double x = min(sa, sc);
  if (C(sa, x) and !C(x, sc))
    cout << "Yes";
  else
    cout << "No";
}
