说明：  法国著名数学家波瓦松在表年时代研究过一个有趣的数学问 题：某人有12品脱的啤酒一瓶，想从中倒出6品脱，但他没有6品 脱的容器，仅有一个8品脱和5品脱的容器，怎样倒才能将啤酒分 为两个6品脱呢？
(famous French mathematician Beiwasong times in the table, examined an interesting mathematical problem : a person is 12 pints of beer bottle to six pints from the dump, but he did not six pint containers, only an eight pints and pints of the five containers, reversing what beer can be divided into two six pint?)