#include <cstdio>
#include <algorithm>
using namespace std;
bool v[100];
int main()
{
    freopen ("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    int n,k;
    scanf ( "%d%d" , &n , &k );
    fill(v+k+1,v+n+1,true);
    do
    {
        for(int i=1;i<=n;++i)
            if(!v[i])
                printf("%d ",i);
        printf("\n");
    }while(next_permutation(v+1,v+n+1));
    return 0;
}