#include<stdio.h>
#define MAXN 19
void bkt(int cap,int size);
FILE*fin,*fout;
int N,K;
int v[MAXN];
int main()
{
	fin=fopen("combinari.in","r");
	fout=fopen("combinari.out","w");
	fscanf(fin,"%d%d",&N,&K);
	bkt(1,1);
	fclose(fin);
	fclose(fout);
	return 0;
}

void bkt(int cap,int size)
{
	if(size==K+1)
	{
		for(int i=1;i<=K;i++)
		{
			fprintf(fout, "%d ", v[i]);
		}
		fprintf(fout, "\n");
		return;
	}
	for(int i=cap;i<=N;i++)
	{
		v[size]=i;
		bkt(i+1,size+1);
	}
}