问题描述：
For an arbitrary natural number n,we add 121to it when it is an odd number and have it divided by 2
(接上）when it is an even number.This is one operation.Now if we perform this operation on 231 successively,whether 100 can appear or not in this process?Why?(请翻译且讲解）
(接上）when it is an even number.This is one operation.Now if we perform this operation on 231 successively,whether 100 can appear or not in this process?Why?(请翻译且讲解）
问题解答：
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