using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var a = NN;
        var b = NN;
        var c = NN;
        for (var i = 1; a + i < b + c; ++i) for (var j = 1; a + i + j < b + c; ++j)
        {
            if (a + i + j + b <= c || a + i + j + c <= b) continue;
            var e2 = - (a + i) * ((a + i + j) * (a + i + j) + b * b - c * c) / (double)(a + i + j) + (a + i) * (a + i) + b * b;
            var d2 = - (a + j) * ((a + i + j) * (a + i + j) + c * c - b * b) / (double)(a + i + j) + (a + j) * (a + j) + c * c;
            var e = Math.Sqrt(e2);
            var d = Math.Sqrt(d2);
            var bad = (b * b + d * d - i * i) / (2 * b * d);
            var eac = (e * e + c * c - j * j) / (2 * e * c);
            if (Math.Abs(bad - eac) < 0.000000001)
            {
                WriteLine("Yes");
                return;
            }
        }
        WriteLine("No");
    }
}