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#include <fstream>
using namespace std;
ifstream fin ("submultimi.in");
ofstream fout ("submultimi.out");
int n, a[17];
void afisol (int d) {
for (int i = 1; i < d; i++)
fout << a[i] << ' ';
fout << '\n';
}
void bkt (int d) {
if (d > 1)
afisol (d);
for (int i = a[d - 1] + 1; i <= n and d <= n; i++) {
a[d] = i;
bkt (d + 1);
}
}
int main()
{
fin >> n;
bkt (1);
return 0;
}