#!/Usr/bin/python

import string
import re
import random,time, math
import os,sys


first=['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','1','2','3','4','5','6','7','8','9','0','','-']

second=['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','1','2','3','4','5','6','7','8','9','0','','-']

third=['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','1','2','3','4','5','6','7','8','9','0','','-']

suffix=['com','org','net']

namefile=open('3letter_names.txt','w')


for letter1 in first:
	for letter2 in second:
		for letter3 in third:
			temp_s=letter1+letter2+letter3
			namefile.write(temp_s)
			namefile.write('\n')