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#include <iostream>
#include <fstream>
using namespace std;
ifstream f ("submultimi.in");
ofstream g ("submultimi.out");
int n, sol[18];
bool ok (int poz)
{
int i;
for (i=1; i<poz; i++)
if (sol[i] >= sol[poz])
return false;
return true;
}
void afisare (int poz)
{
for (int i=1; i<=poz; i++)
g << sol[i] << " ";
g << '\n';
}
void bkt (int k)
{
for (int i=1; i<=n; i++)
{
sol[k] = i;
if (ok(k))
{
afisare(k);
if (k < n)
bkt(k+1);
}
}
}
int main()
{
f >> n;
bkt(1);
return 0;
}