#include <stdio.h>
long n,k;
long st[30];

void back(int x)
{
	long i;
	if (x==k+1)
	{
		for (i=1; i<=k; i++)
			printf("%ld ",st[i]);
		printf("\n");
		return;
	}
	for (i=st[x-1]+1; i<=n; i++)
	{
		st[x]=i;
		back(x+1);
	}
}

int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%ld %ld",&n,&k);
	back(1);
	fclose(stdin);
	fclose(stdout);
	return 0;
}