#include <iostream>
#include <fstream>
using namespace std;
ifstream f("combinari.in");
ofstream g("combinari.out");

int n,k,a[20];

void Back (int p)
{
    int i;
    if (p<=k)
    {
        for (i=a[p-1]+1;i<=n;i++)
        {
            a[p]=i;
            Back (p+1);
        }
    }
    else
    {
        for (i=1;i<=k;i++) g<<a[i]<<" ";
        g<<"\n";
    }
}




int main()
{
f>>n>>k;
Back (1);




    return 0;
}