#!/usr/bin/env python3
# --coding:utf-8--

L = ['Bart', 'Lisa', 'Adam']

#For循环
for i in L:
    print('%s'%i)

#While循环
i = 0
num = len(L)
while i < num:
    print(L[i])
    i = i + 1

#死循环
while True:
    print(0)