num_lines = int(input())
for i in range(num_lines):
line = input()
from sys import stdin
num_lines = int(input())
for i in range(num_lines):
line = stdin.readline()
from sys import stdin
num_lines = int(input())
lines = stdin.readlines()
from sys import argv
from random import *
from string import *
for i in range(int(argv[1])):
print(''.join(choice(ascii_lowercase + ' ') for _ in range(int(argv[2]))))
((''python3 read_test.py lines length > out.txt'', where ''lines'' is the number of lines and ''length'' is the number of characters per line.))