#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define rep(i, n) for (ll i = 0; i < (ll)(n); i++)

int main()
{
  ll n;
  cin>>n;
  ll a,b,c=n;
  if(n%2==0){
    a=2;
    b=n-2;
  }else {
    a=1;
    b=n-1;
  }
  ll ans=a^b^c;
  ll ans2=a|b;
  ll ans3=b|c;
  ll ans4=c|a;
  if(ans!=0||b==0){
    cout<<"-1 -1 -1"<<endl;
    return 0;    
  }
  cout<<a<<" "<<b<<" "<<c<<endl;
  //cout<<ans<<" "<<ans2<<" "<<ans3<<" "<<ans4<<endl;
  return 0;
}