#include<bits/stdc++.h>
using namespace std;
int main() {
int a, b, c;
cin >> a >> b >> c;
__float128 x = a, y = b, z = c;
__float128 d = sqrt(a) + sqrt(b) - sqrt(c);
__float128 eps = 0.1;
for(int i = 0; i < 12; i++) eps *= eps;
if(d<eps) cout << "Yes";
else cout << "No";
}