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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("submultimi.in");
ofstream fout("submultimi.out");
int n , v[20] , sol[20];
void bkt(int k){
if(k<=n){
for(int i=1 ; i<=n ; i++)
if((v[i] == 0)&&((k==1)||(i>sol[k-1]))){
sol[k]=i;
v[i]=1;
for(int j=1 ; j<=k ; j++)
fout<<sol[j]<<' ';
fout<<'\n';
k++;
bkt(k);
k--;
v[i]=0;
}
}
}
int main()
{
fin>>n;
bkt(1);
return 0;
}