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#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n,x;
int v[20];
bool verif[20];
void bkt(int k)
{
for (int i=1;i<=n;i++)
{
if (verif[i])
continue;
v[k]=i;
verif[i]=true;
if (k<=x)
{
if (k==x)
{
for (int j=1;j<=x;j++)
fout<<v[j]<<' ';
fout<<'\n';
}
bkt(k+1);
}
verif[i]=false;
}
}
int main()
{
fin>>n>>x;
bkt(1);
return 0;
}