#include<stdio.h>
long n,k,s[20];
void back(long l)  
{
	long i;
	if (l==k)
	{
        for(i=1;i<=k;++i)
			printf("%ld ",s[i]);
        printf("\n");
	}
	else  
	{
        for(i=s[l]+1;i<=n;++i)
		{
			s[l+1]=i;  
			back(l+1);  
		}
	}
}  
  
int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%ld%ld",&n,&k);
	back(0);
	return 0;
}