#include <fstream>

using namespace std;

ifstream f("combinari.in");
ofstream g("combinari.out");
int a[19];

int afisaza(int n)
{
    int i;
    for(i=1; i<=n; i++)
    {
        g << a[i] << " ";
    }
    g << "\n";
    return 0;
}

void back(int i,int n,int x)
{
    if(i==n+1)
    {
        afisaza(n);
    }
    else
    {
        int j;
        for (j=a[i-1]+1; j<=x; j++)
        {
            a[i]=j;
            back(i+1,n,x);
        }
    }
}


int main()
{
    int n,x;
    f >> x >> n;
    back(1,n,x);
    return 0;
}