#include<stdio.h>
int n,k;
int st[10];

void read()
{
	scanf("%d%d",&n,&k);
}

void print()
{
	int i;
	for (i=1;i<=k;i++)
	{
		printf("%d ",st[i]);
	}
	printf("\n");
	
}


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

int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	read();
	back(1);
	return 0;
}