#include<stdio.h>
FILE *in,*out;
int n,k,st[19],p;

void back(int k);
void tipar (int k);
int main(void)
{
	in=fopen("combinari.in","rt");
	out=fopen("combinari.out","wt");
	fscanf(in,"%d%d",&n,&p);
	back(1);
	fclose(in);
	fclose(out);
	return 0;
}	

void back(int k)
{	
	for(st[k]=st[k-1]+1;st[k]<=n;++st[k])
	{
		if(k==p)
				tipar(k);
			else
				back(k+1);			
	}		
	
}	
	

void tipar (int k)
{
	for(int i=1;i<=p;++i)
		fprintf(out,"%d ",st[i]);
	fprintf(out,"\n");
}