#danglam228

#include <bits/stdc++.h>
using namespace std;
int n;
int main() {
        ios_base::sync_with_stdio(false);
    cin.tie(0); cout.tie(0);
    //freopen(".INP", "r", stdin);
    //freopen(".OUT", "w", stdout);
    cin >> n;
    bool check = false;
    for (int i = 1; i < n - 1; ++i) {
        for (int j = i + 1; j < n; ++j) {
            for (int k = j + 1; k < n; ++k) {
                if (i + j + k == n) {
                    check = true;
                    cout << i << " " << j << " " << k << endl;
                }
            }
        }
    }

    if (!check) {
        cout << "không có" << endl;
    }

    return 0;
}

#include <iostream>
using namespace std;
int main() {
int n;
cin>>n;
bool ok=false;
for (int i=1;i<=n/3;++i) {
for (int j=i+1;j<=(n-i)/2;++j) {
int k=n-i-j;
if (k>j) {
cout<<i<<" "<<j<<" "<<k<<endl;
ok=true;
}
}
}
if (!ok) {
cout<<"khong co"<<endl;
}
return 0;
}