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

void print_solutie(int sol[19], int k)
{
    for(int i =1; i<=k; i++)
    {
        out<<sol[i]<<" ";
    }
    out<<"\n";
}

void bkt (int p, int k, int n, int sol[19])
{
    if(p==k+1)
    {
        print_solutie(sol,k);
        return;
    }
    for(int i=sol[p-1]+1; i<=n; i++)
    {

            sol[p]=i;
            bkt(p+1,k,n,sol);


    }

}



int main()
{
     int n,k;
     int sol[19]={0};

     in>>n>>k;
     bkt(1,k,n,sol);

return 0;
}