#include <iostream>

#include <assert.h>

/**

* Key:

* * get someone bit: num & (mode1bit<<N)

* * check a few bits: num & (mode3bit<<shift) == What

*/

int replace(int num)

{

    unsigned int mode3bit = ;

    unsigned int mode1bit = ;

    int shift = ;

    int result = ;

    while (shift < )

    {

        while (shift <  && (num & (mode3bit<<shift)) != (<<shift))

        {

            result += (num & (mode1bit<<shift));

            shift++;

        }

        if (shift >= )

        {

            break;

        }

        else if ( - shift < )

        {

            result += (num & (mode3bit<<shift));

            break;

        }

        result += (<<shift);

        shift += ;

    }

    return result;

}