#include<stdio.h>
int sol[101],n,m;
void back (int k,int m,int p)
{
    int i,j;
    if (k==m+1)
    {
        for (j=1; j<=m; ++j)
            printf ("%d ",sol[j]);
        printf ("\n");
    }
    else
        for (i=p+1; i<=n; ++i)
        {
            sol[k]=i;
            back (k+1,m,i);
        }
}
int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d%d",&n,&m);
    back (1,m,0);
    return 0;
}