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#include <bits/stdc++.h>
using namespace std;
ifstream f("submultimi.in");
ofstream g("submultimi.out");
constexpr int NMAX = 17;
int n, a[NMAX];
void Afisare(int k)
{
for (int i = 1; i <= k; i++)
g << a[i] << ' ';
g << '\n';
}
void bkt(int k)
{
for (int i = a[k-1] + 1; i <= n; i++)
{
a[k] = i;
Afisare(k);
bkt(k+1);
}
}
int main()
{
ios_base::sync_with_stdio(false);
f.tie(nullptr); g.tie(nullptr);
f >> n;
f.close();
bkt(1);
g.close();
return 0;
}