#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> P;
#define REP(i,n) for(ll i=0;i<ll(n);i++)


double eps=1e-9;


int main(void){
	cin.tie(nullptr);  ios_base::sync_with_stdio(false);
	ll i,j;

	ll a,b,c;
	cin >> a >> b >> c;


	for(j=max(a+1,llabs(b-c));j<b+c;j++){
		if(b*b-c*c+j*j<=-2*b*j || b*b-c*c+j*j>=2*b*j) continue;
		for(i=1;i+a<j;i++){
			double cs=(b*b-c*c+j*j)/(2.0*b*j);
			double x=b*b+c*c-j*j+2.0*j*(i+a)-2.0*b*(i+a)*cs;
			double y=b*b-2.0*b*i*cs+i*i;
			double z=2.0*c*(b-i*cs);
			double u=b*b+(i+a)*(i+a)-2.0*b*(i+a)*cs;

			if(x*z<eps) continue;

			if(fabs(x*x*y-z*z*u)<eps){
				cout << "Yes" << endl;
				return 0;
			}

		}
	}


	cout << "No" << endl;



	return 0;
}