#ifdef LOCAL
#include <local.hpp>
#else
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2")
#include <bits/stdc++.h>
#define debug(...) ((void)0)
#define postprocess(...) ((void)0)
#endif

using namespace std;
using ll = long long;
using ld = long double;

using Point = complex<double>;
using Vector = complex<double>;

void solve([[maybe_unused]] int test) {
    int a, b, c;
    cin >> a >> b >> c;

    Point A(0.0, 0.0), B(b, 0.0);

    for (int bd = 1; bd <= 500; bd++) {
        for (int ec = 1; ec <= 500; ec++) {
            auto bc = bd + ec + a;
            if (bc >= b + c) continue;
            if (b >= bc + c) continue;
            if (c >= bc + b) continue;

            auto arad = acos(((double)b * b + c * c - bc * bc) / ((double)2 * b * c));
            Point C(c * cos(arad), c * sin(arad));
            Vector vec_bc = C - B;

            Point D = B + (double)bd / abs(vec_bc) * vec_bc;
            Point E = B + (double)(bd + a) / abs(vec_bc) * vec_bc;

            Vector AD = D - A;
            Vector AE = E - A;
            Vector AC = C - A;

            if (abs(arg(AD) - (arg(AC) - arg(AE))) < 1e-7) {
                cout << "Yes" << endl;
                return;
            }
        }
    }

    cout << "No" << endl;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int t = 1;
    // cin >> t;
    for (int i = 1; i <= t; i++) {
        solve(i);
    }

    postprocess();
}