Fuck Hussain

#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef long double ld;
LL v,t,k;
const LL Re=6400000;
/*
v is the velocity of the ship
t the expected arrival time
k the hight of the tower / mountain
Re is the Earth radius
All units are in SI
*/
 int main()
{
  cin>>v>>t>>k;
  ld theta =acos(Re*1.0/(Re*1.0 + k));
  ld dis=Re*theta;
  if(dis>v*t)puts("YES");
  else puts("NO");
    return 0;
}