giúpppppppppppppppppppppppppppppppppppppppppppppppppp

#include<bits/stdc++.h>
using namespace std;
int n,x,y;
float s,sd;
int main() {
    cin.tie(0);
    ios::sync_with_stdio(0);
    freopen("LH.INP", "r", stdin);
    freopen("LH.OUT", "w", stdout);
    cin>>n>>x>>y;
    s=3.14*x*x;
    sd=3.14*y*y;
    if (s<n*sd) {
        cout<<"NO"<<endl;
    } else {
        cout<<"YES"<<endl;
    }
    return 0;
}