#include <stdio.h>
int a[20],n,k;
FILE *in,*out;
void back(int x)
{
	int i;
	if (x==k+1)
	{
		for (i=1;i<=k;i++)
			fprintf(out,"%d ",a[i]);
		fprintf(out,"\n");
	}
	else
	{
		for (i=a[x-1]+1;i<=n;i++)
			{
				a[x]=i;
				back(x+1);
			}
	}
}
int main()
{

	in=fopen("combinari.in","r");
	out=fopen("combinari.out","w");
	fscanf(in,"%d%d",&n,&k);
	back(1);
	fclose(in);
	fclose(out);
	return 0;
}