#include <stdio.h>
int a[19],n,k;
void afisare(){
	int i;

	for (i=1;i<=k;i++)
		printf("%d ", a[i]);

	printf("\n");
}


void back(int lung){

	
	for (int i=a[lung-1]+1;i<=n;i++){
		a[lung]=i;
		if (lung==k)
			afisare();
		back(lung+1);
		}

}

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

	return 0;
}