#include <bits/stdc++.h>
using namespace std;
#define int long long
#define double long double
double f(double
a, double
b, double
c){
	return (a*a-b*b-c*c)/(-2*b*c);
}
signed main(){
	double a,b,c;
	cin>>a>>b>>c;
	for(int i=1;i<=200;i++)for(int j=1;j<=200;j++)if(2*max({a+i+j,b,c}) < a+i+j+b+c){
		a = a+i+j;
		double x = (a*a+b*b-c*c)/(2*a);
		double y = sqrt(b*b-(a*a+b*b-c*c)*(a*a+b*b-c*c)/(4*a*a));
		double n = f(i,sqrt(x*x+y*y),sqrt((x-i)*(x-i)+y*y));
		double m = f(j,sqrt((a-x)*(a-x)+y*y),sqrt((a-j-x)*(a-j-x)+y*y));
		double p = acos(n), q = acos(m);
		if(abs(p-q) <= 1e-8){
			cout<<"Yes"<<endl;
			return 0;
		}
		a = a-i-j;
	}
	cout<<"No"<<endl;
}