#include<stdio.h>
FILE *in=fopen("combinari.in","r");
FILE *out=fopen("combinari.out","w");
int n,k,st[20];
void bkt(int pas)
{
	int i;
	if(pas==k)
	{
		for(i=1;i<=k;i++)
			fprintf(out,"%d ",st[i]);
		fprintf(out,"\n");
	}
	if(pas<k)
	{
		for(i=st[pas]+1;i<=n;i++)
		{
			st[pas+1]=i;
			bkt(pas+1);
			
		}
		pas--;
	}
}
int main()
{
	fscanf(in,"%d %d",&n,&k);
	bkt(0);
	
}