#include <fstream>
using namespace std;
int k,n,a[19];
ifstream in("combinari.in");
ofstream out("combinari.out");
void solutie(int cifre )
{
    if(cifre == k)
    {
        for(int i=1;i<=k;++i)
            out<<a[i]<<" ";
            out<<'\n';
    }
    else
        for(int i=a[cifre]+1;i<=n;++i)
        {
            a[cifre+1]=i;
            solutie(cifre+1);
        }
}

int main(){

    in>>n>>k;
    solutie(0);
    return 0;

}