A prisoner received a letter from his wife ：‘I have decided to plant some potato in the back garden。When is the best time to plant them？’The prisoner kmew that the prison police read all the letters，so he repliedin a letter：‘Dear wife whatever you do，DO NOT touch the back garden ！I hid all the gold there。’ A weekor later，he received another letter from his wife：‘You wouldn’t belive what happened。Some men came with shovels to the house，and dug up the whole back garden。’ The prisoner wrote another letter ：‘Dear， wife NOW is the besttime to plan the potato！’

一名囚犯收到了妻子的一封信：“我决定在后花园种一些土豆，什么时候种最好？”囚犯知道预警读过了所有的信，所以他在回信中说：“亲爱的老婆，不管你做什么，千万不能动后花园！我在那藏了所有的金子。”一周后，他收到了妻子的又一封信：“你不会相信发生了什么。一些人带着铁锹来到家里，挖遍了整个后花园。”囚犯回信说：“亲爱的老婆，现在是种土豆的最好时候。”