#include<cstdio>
#include<fstream>
#include<iostream>

using namespace std;

#define nn 20

int v[nn],x[nn];
int n,k;

void back (int p)
{

int i;
if(p>k){
for(int i=1;i<=k;++i)
printf("%d ",v[i]);
printf("\n");
}
else
for(i=1;i<=n;++i)
if(x[i]==0&&v[p-1]<i){
v[p]=i;
x[i]=1;
back(p+1);
x[i]=0;
}

}

int main ()
{

ifstream fin ("combinari.in");
freopen("combinari.out","w",stdout);
fin>>n>>k;
fin.close();

back(1);

return 0;}