Use the Alphabet Coding Method (A =1, B = 2 $f ( x ) = x ^ { 3 } - 1$

Essay

Use the alphabet coding method (A =1, B = 2, C = 3, ... Z = 26) to
-Encode the message BEWARE OF DOG using the one-to-one function defined by $f ( x ) = x ^ { 3 } - 1$ Give the inverse function that the decoder would need when the message is
received.