Input: 0
Result: ffffff00
=================
Input: 1
Result: ffffff00
=================
Input: 5
Result: ffff7200
=================
Input: 9
Result: ffff5500
=================
Input: 16
Result: ffff4000
=================
Input: 256
Result: ffff1000
=================
Input: -1
Result: ffff0000
=================
Input: -16
Result: ffff0000
=================
