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Question: Random flipped bit

Question:Random flipped bit

joyceljy9990 50 Maple
random condition binary position
April 21 2016
0

May I know any command can help to random selected a position in a group of bit number then flip that number but with condition after convert to bytes the number cannot be more than 7?

For example,

I have integer 3, i convert to binary become 0000011

then i need a command to random select a position to flip and only one bit can be flipped.

After that the group of flipped number will convert back to decimal, but total value cannot more than 7? any command can solve?  Thank you. 
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