#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, k, c[20];
bool viz[20];
void afisare()
{
    int i;
    for (i = 1; i <= k; i++)
        fout<<c[i]<<" ";
    fout<<'\n';
}
void gen( int i)
{
    if ( i == k+1 )
        afisare();
    else
    {
        int p;
        if (i!=1)
            p = c[i-1];
        else
            p = 1;
        for (int j = p; j <= n; j++)
            if (viz[j] == 0)
        {
            viz[j] = 1;
            c[i] = j;
            gen (i+1);
            viz[j] = 0;
        }
    }
}
int main()
{
    fin>>n;
    fin>>k;
    gen(1);
    return 0;
}