#!/usr/bin/python

import random

boynames = []
boynamesfile = open("boynames")
for name in boynamesfile:
  boynames.append(name.strip())

surnames = []
surnamesfile = open("surnames")
for name in surnamesfile:
  surnames.append(name.strip())

print random.choice(boynames)+"_"+random.choice(boynames)+"_"+random.choice(surnames)