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#include<fstream>
using namespace std;
ifstream f ("submultimi.in");
ofstream g ("submultimi.out");
int x[16], n, nr=0;
void Afis()
{ int i;
for(i=1;i<=n;i++)
if (x[i]==1) g<<i<<" ",nr++;
if(nr!=0)g<<'\n';
}
void Back(int k)
{ int i;
for(i=0;i<=1;i++)
{ x[k]=i;
if (k==n) Afis();
else Back(k+1);
}
}
int main()
{ f>>n;
Back(1);
return 0;
}