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#include <bits/stdc++.h>
using namespace std;
ifstream fin ("submultimi.in");
ofstream fout ("submultimi.out");
int n,v[20],nr;
void afis(int k){
if(nr!=1)
{
for(int i=1 ; i <= k ; ++i)
if(v[i] == 1)
fout << i << " ";
fout << endl;
}
}
void backk(int k){
for(int i = 0; i <= 1 ; ++i)
{
v[k]=i;
if(k == n)
{++nr;afis(k);}
else
backk(k+1);
}
}
int main()
{
fin>>n;
backk(1);
return 0;
}