#include<stdio.h>
int n,k,s[1000],i;
void backtracking(int l)
{
	if(l==k+1)
	{
		for(i=1;i<=k;i++)
			printf("%d ",s[i]);
		printf("\n");
	}
	else
	{
		s[l]=s[l-1];
		while(s[l]<n)
		{
			s[l]++;
			backtracking(l+1);
		}
	}
}
int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d %d",&n,&k);
	backtracking(1);
	return 0;
}