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#include <fstream>
#include <vector>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
vector<int> v;
void rotieren(int first, int last)
{
if (!v.empty())
{
for (int i = 0; i < v.size(); i++)
{
fout << v[i] << ' ';
}
fout << '\n';
}
if (first<=last){
for (int i = first; i<=last; i++){
v.push_back(i);
rotieren(i+1, last);
v.pop_back();
}
}
return;
}
int main(){
int n;
fin>>n;
rotieren(1,n);
}