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+====== Using shift operator for faster division and multiplication ======
+** Multiplications **
+<code java>
+* 2    =  12 << 1
+* 4    =  12 << 2
+* 8    =  12 << 3
+* 16   =  12 << 4
+* 32   =  12 << 5
+* 64   =  12 << 6
+* 128  =  12 << 7
+* 256  =  12 << 8
+</code>
+** Divisions **
+<code java>
+/ 2    =  12 >> 1
+/ 4    =  12 >> 2
+/ 8    =  12 >> 3
+/ 16   =  12 >> 4
+/ 32   =  12 >> 5
+/ 64   =  12 >> 6
+/ 128  =  12 >> 7
+/ 256  =  12 >> 8
+</code>