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#include <fstream>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int luat[17];
void submultimi(int n,int i)
{
if(i>n){
return;
}
luat[i]=true;
for(int j=1;j<=i;++j){
if(luat[j]){
fout << j << ' ';
}
}
fout << '\n';
submultimi(n,i+1);
luat[i]=false;
submultimi(n,i+1);
}
int main()
{
int n;
fin >> n;
submultimi(n,1);
return 0;
}