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#include <fstream>
#include <iostream>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int v[17];
int n;
void bkt(int poz){
if (poz > 0){
for (int i = 0; i < poz; i++){
fout << v[i] << " ";
}
fout << "\n";
for(int i = v[poz - 1] + 1;i <= n; i++){
v[poz] = i;
bkt(poz + 1);
}
}
else
for(int i = 1;i <= n; i++){
v[poz] = i;
bkt(poz + 1);
}
}
int main(){
fin >> n;
bkt (0);
return 0;
}