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#include <fstream>
using namespace std;
ifstream f("submultimi.in");
ofstream g("submultimi.out");
int n,x[20];
void scrie ()
{
int i,ok=0;
for (i=1;i<=n;i++)
if (x[i]==1) {g<<i<<" ";ok=1;}
if (ok==1) g<<'\n';
}
void BACK(int h)
{
int i;
if (h==n+1) scrie ();
else
{
x[h]=0;
BACK(h+1);
x[h]=1;
BACK(h+1);
}
}
int main()
{
f>>n;
BACK(1);
return 0;
}