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#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,k,v[20],ff[20];
void bt(int nivel)
{
int i;
for(i = 1;i <=n;i++)
{
if(ff[i]==0)
{
v[nivel]=i;
ff[i]=1;
if(nivel==k){
for(int j=1;j<=k;j++)
fout<<v[j]<<" ";
fout<<'\n';
}
else bt(nivel+1);
ff[i]=0;
}
}
}
int main()
{
fin>>n;
k=n;
bt(1);
return 0;
}