#include <bits/stdc++.h>
using namespace std;
#define FOR(i,m,n) for(int i=(m);i<(n);++i)
#define REP(i,n) FOR(i,0,n)
using ll = long long;
constexpr int INF = 0x3f3f3f3f;
constexpr long long LINF = 0x3f3f3f3f3f3f3f3fLL;
constexpr double EPS = 1e-8;
constexpr int MOD = 998244353;
// constexpr int MOD = 1000000007;
constexpr int DY4[]{1, 0, -1, 0}, DX4[]{0, -1, 0, 1};
constexpr int DY8[]{1, 1, 0, -1, -1, -1, 0, 1};
constexpr int DX8[]{0, -1, -1, -1, 0, 1, 1, 1};
template <typename T, typename U>
inline bool chmax(T& a, U b) { return a < b ? (a = b, true) : false; }
template <typename T, typename U>
inline bool chmin(T& a, U b) { return a > b ? (a = b, true) : false; }
struct IOSetup {
  IOSetup() {
    std::cin.tie(nullptr);
    std::ios_base::sync_with_stdio(false);
    std::cout << fixed << setprecision(20);
  }
} iosetup;

int main() {
  int a, b, c; cin >> a >> b >> c;
  if (b > c) swap(b, c);
  for (int bd = 1; bd + a + 1 < b + c; ++bd) {
    for (int ec = 1; bd + a + ec < b + c; ++ec) {
      const int l = bd + a + ec;
      const double s = (b + c + l) * 0.5l;
      const double area = sqrt(s * (s - b) * (s - c) * (s - l));
      if (asin(area * 2 / b / l) > M_PI / 2) {
        const double h = area * 2 / l;
        const auto calc = [&](const int bottom, const int diag) -> double {
          const double theta = (diag == b ? M_PI - asin(h / diag) : asin(h / diag));
          const double diag2 = sqrt(bottom * bottom + diag * diag - 2 * bottom * diag * cos(theta));
          return asin(bottom * h / diag / diag2);
        };
        if (abs(calc(bd, b) - calc(ec, c)) < EPS) {
          cout << "Yes\n";
          return 0;
        }
      } else {
        const double h = area * 2 / l;
        const auto calc = [&](const int bottom, const int diag) -> double {
          const double theta = asin(h / diag);
          const double diag2 = sqrt(bottom * bottom + diag * diag - 2 * bottom * diag * cos(theta));
          return asin(bottom * h / diag / diag2);
        };
        if (abs(calc(bd, b) - calc(ec, c)) < EPS) {
          assert(false);
          cout << "Yes\n";
          return 0;
        }
      }
    }
  }
  cout << "No\n";
  return 0;
}