#include <stdio.h>
int a[20];
int n,k;
FILE *fin,*fout;
void ver()
{
    for(int i=1;i<=k;i++) fprintf(fout,"%d ",a[i]);
    fprintf(fout,"\n");
}
void bcs(int pos)
{
    if(pos==k+1) ver();
    else
    {
        for(int i=a[pos-1]+1;i<=n;i++)
        {
            a[pos]=i;
            bcs(pos+1);
        }
    }
}
int main()
{
    fin=fopen("combinari.in","r");
    fout=fopen("combinari.out","w");
    fscanf(fin,"%d%d",&n,&k);
    bcs(1);
}