#include<stdio.h>
int n, k, st[32], sel[32];

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

void back(int nivel)
{
	if (nivel>k) {afisare(); return;}
	for (int i=st[nivel-1]+1; i<=n; i++)
		if (!sel[i])
		{
			sel[i]=1;
			st[nivel]=i;
			back(nivel+1);
			sel[i]=0;
		}
}

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