#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
short n, k, combi[19];
void scrie()
{
    for(int i=1; i<=k; i++)
        fout<<combi[i]<<' ';
    fout<<endl;
}
bool valid(short u, short i)
{
    bool res=true;
    for(int j=1; j<u&&res; j++)
        if(combi[j]==i)
            res=false;
    return res;
}
short backtrack(short u)
{
    if(u<=k)
    {
        bool flag=true;
        for(short i=u; i<=n; i++)
            if(valid(u, i))
            {
                combi[u]=i;
                if(u==k)
                    scrie();
                backtrack(u+1);
            }
    }
}
int main()
{
    fin>>n>>k;
    backtrack(1);
}