#include <iostream>
#include <fstream>
#include <cstring>

using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
constexpr int NX {19};
int n, m;
bool viz[NX];
int sol[NX];
void afisare(int k)
{
    for(int i=1; i<k; ++i)
    fout<<sol[i]<<" ";
    fout<<"\n";
}
void bec(int k)
{
    if(k>m)
    {
        afisare(k);
        return;
    }
    for(int i=sol[k-1]+1; i<=n; ++i)
    {
        if(viz[i]==0)
        {
            sol[k]=i;
            viz[i]=1;
            bec(k+1);
            viz[i]=0;
        }
    }
}
int main()
{
    fin>>n>>m;
    bec(1);
    return 0;
}