#include<stdio.h>
int n,k, sol[20];

void citire()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d%d", &n, &k);
}

void pr()
{
    for(int i=1;i<=k;++i)
      printf("%d ", sol[i]);
    printf("\n");
}

void back(int l)
{
       if(l)
       {
           for(sol[l]=sol[l-1]+1;l<=k &&k-l<=n-sol[l];sol[l]++)
               if(l==k)
                 pr();
               else
                 back(l+1);
           //back(--l);
       }
}

int main()
{
    citire();
    back(1);

}