#include<cstdio>
using namespace std;
int viz[20],n,m,k;
void back (int k)
{
	int i;
	if(k<=m)
		for( i=viz[k-1]+1;i<=n-m+k;i++)
		{
			viz[k]=i;
			back(k+1);
		}
else
	{
		for(i=1;i<=m;i++)
			printf("%d ",viz[i]);
		printf("\n");
	}
}
int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d %d",&n,&m);
	back(1);
	return 0;
}