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#include <fstream>
#include <vector>
using namespace std;
ofstream fout("submultimi.out");
int n;
bool viz[17];
vector<int> c;
void comb(int k){
if(c.size()>0){
for(auto i : c)
fout<<i<<' ';
fout<<'\n';
}
for(int i=k;i<=n;i++)
if(!viz[i]){
viz[i] = true;
c.push_back(i);
comb(i);
c.pop_back();
viz[i] = false;
}
}
int main() {
ifstream fin("submultimi.in");
fin>>n;
comb(1);
return 0;
}