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#include <fstream>
#include <iostream>
using namespace std;
int x[10] ,n;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int OK(int k){
if(k == 1)
return 1;
if(x[k]>x[k-1])
return 1;
return 0;
}
void Afisare(int k)
{
for(int i = 1; i <= k; i++){
if(x[i]>0)
fout<<x[i]<<" ";
}
fout<<'\n';
}
void back(int k){
for(int i = 1 ; i <= n ; ++i)
{
x[k]=i;
if(OK(k)){
Afisare(k);
back(k+1);
}
}
}
int main(){
fin>>n;
back(1);
return 0;
}