#include <bits/stdc++.h>
using namespace std;
const long long N = 2e6 + 5;
const long long INF = 1e18L;
template <typename Arg1>
void __f(const char* name, Arg1&& arg1) {
  cerr << name << ": " << arg1 << '\n';
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args) {
  const char* comma = strchr(names + 1, ',');
  cerr.write(names, comma - names) << ": " << arg1 << " |";
  __f(comma + 1, args...);
}
long long ar[N];
long long dp[N];
signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  ;
  long long T = 1;
  while (T--) {
    long long a, b, c;
    cin >> a >> b >> c;
    long long lhs = a * a + b * b + c * c;
    long long rhs = (long long)(a * b + b * c + c * a);
    cout << (lhs - 2 * rhs >
                     0.000000000000000000000000000000000000000000000000001
                 ? "Yes"
                 : "No")
         << '\n';
  }
  return 0;
}
