#include <stdio.h>
int s[1000],k,n,m;
void back(int k)
{
	if(k==m+1)
   	{
      	for(int i=1;i<=m;i++)
            	printf("%d ",s[i]);
         printf("\n");
         return;
      }
   for (int i=s[k-1]+1; i<=n-(m-k); i++)

      	{
         	s[k]=i;
            back(k+1);
         }
}
int main()
{
	freopen("combinari.in","r",stdin);
   freopen("combinari.out","w",stdout);
	scanf("%d%d",&n,&m);
   back(1);
   return 0;
}