#include <stdio.h>
#include <fstream.h>

int N,K;
int x[100];

ifstream fin("combinari.in");
ofstream fout("combinari.out");

void afis()
{
    for (int i = 1; i<=K; i++)
        fout<<x[i]<<" ";
    fout<<"\n";
}

void back(int k )
{
    if ( k == K +1)
        afis();
    else
    {
        for (int i = x[k-1]+1; i <= N; i++)
        {
            x[k] = i;
            back(k+1);
        }
    }
}

int main()
{
    fin>>N>>K;
    back(1);
    return 0;
}