#include <bits/stdc++.h> 
//#include <atcoder/all>
#define rep(i, n) for(long long int i = 0; i < n; ++i)
#define _rep(i, m, n) for(long long int i = m; i < n; ++i)
using namespace std;
//using namespace atcoder;
typedef long long ll;
typedef pair<int, int> P;
const ll mod = 1000000007;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};
string Yes[2] = {"Yes", "No"};

/*------------------------------------------------------------------*/

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    ll n; cin >> n;
    if(n <= 2) cout << -1 << " " << -1 << " " << -1 << endl;
    else cout << 1 << " " << n - 1 << " " << n << endl;

}