Convert the integer to a binary string.  From the right (that is least
significant bit), find the first occurence of 01 in the string. For
example.. if the string is *00110  **01 **11100*, notice the isolated part,
that is what you have to find.  Then simply flip the 01 to 10.. like *00110*
*10**11100.*  And then move all the 1's that you skipped to the right..
like *00110**10**00111*

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