#!/bin/python
import sys,random
from time import sleep

def GetRandString(parts,partlen,separator):
	return separator.join(''.join(random.choice('0123456789ABCDEF') for x in range(partlen) for y in range(parts))


if len(sys.argv)==4:
	for rows_counter in range(0,int(sys.argv[3])):
		print(GetRandString(int(sys.argv[2]),int(sys.argv[1]),' '))
		sleep(0.05)
elif len(sys.argv)==3:
	try:
		while True:
			print(GetRandString(int(sys.argv[2]),int(sys.argv[1]),' '))
			sleep(0.05)
	except KeyboardInterrupt:
		print('')