#include<stdio.h>
long st[20];
long n, K;

void combinari(int k)
{
	if(k - 1==K)
	{
		for (long i = 1; i <= K; i ++)
			printf("%ld ", st[i]);
		printf("\n");
	}
	else
		for(long i=st[k-1] + 1;i<=n; i++)
		{
			st[k]=i;
			combinari(k+1);
		}
}
int main()
{
	freopen ("combinari.in", "rt", stdin);
	freopen ("combinari.out", "wt", stdout);

	scanf("%ld %ld", &n, &K);

	combinari(1);

	return 0;
}