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#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
int n,v[20];
ifstream in("submultimi.in");
ofstream out("submultimi.out");
void afis(){
for(int i=1;i<=n;i++){
if(v[i]==1) out<<i<<" ";
}
out<<'\n';
}
void back(int k){
if(k==n+1) afis();
else {
v[k]=1;
back(k+1);
v[k]=0;
back(k+1);
}
}
int main()
{
in>>n;
back(1);
return 0;
}