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#include <bits/stdc++.h>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n;
int x[17];
bool ap[17];
void Back(int k)
{
if(k>0)
{
for(int i=1; i<=k; ++i) fout<<x[i]<<" ";
fout<<"\n";
}
for(int i=x[k]+1; i<=n; ++i)
{
if(!ap[i])
{
ap[i]=1;
++k;
x[k]=i;
Back(k);
--k;
ap[i]=0;
}
}
}
int main()
{
fin>>n;
Back(0);
return 0;
}