Treat n as a 32-bit unsigned integer, reverse the order of its 32 bits, and output the resulting unsigned integer.
One line: an integer n with 0 <= n < 2^32.
One line: the value obtained by reversing all 32 bits of n.
Example 1
Input
1
Expected
2147483648
Explanation
1 is 0...01; reversing 32 bits puts the 1 at the top: 2^31 = 2147483648.
Example 2
Input
0
Expected
0
Explanation
All bits are zero, so the reverse is 0.
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