#include<bits/stdc++.h>
using namespace std;

int main(){
	int a, b, c; cin >> a >> b >> c;

	auto hen_to_cos = [&](double a, double b, double c){
		return (a*a + b*b - c*c) / (2.0*a*b);
	};

	const double eps = 1e-9;

	bool mode = false;
	for (int x=a+2; x<b+c; x++){
		double ax = 0.0, ay = 0.0;
		double cx = c, cy = 0.0;
		double bx, by;
		double cos1 = hen_to_cos(b, c, x);
		double sin1 = sqrt(1 - cos1 * cos1);
		bx = cos1 * b;
		by = sin1 * b;
		for (int y=1; ; y++){
			if (x-y-a <= 0) break;
			double dx = bx + (cx - bx) * (double)y / (double)x;
			double dy = by + (cy - by) * (double)y / (double)x;
			double ex = bx + (cx - bx) * (double)(y+a) / (double)x;
			double ey = by + (cy - by) * (double)(y+a) / (double)x;
			double AD = sqrt((dx - ax) * (dx - ax) + (dy - ay) * (dy - ay));
			double AE = sqrt((ex - ax) * (ex - ax) + (ey - ay) * (ey - ay));
			if (abs(hen_to_cos(b, AD, y) - hen_to_cos(c, AE, x-y-a)) < eps){
				mode = true;
				break;
			}
		}
		if (mode) break;
	}

	if (mode){
		cout << "Yes\n";
	}else{
		cout << "No\n";
	}
}