A message consisting of three words, with spaces removed, is first written in terms of numbers by the correspondence A 1, B 2 etc. The message is then made into a 4 Times 4 matrix by placing it down columns in order, and then coded by multiplication on the left by the matrix product If the received message was 22, 74, 70, 73, 71, 281, 340, 314, 72, 269, 300, 293, 24, 113, 178, 106 what was the original message? You are required to compute the required matrix inverses using the algorithm from lectures, but you may use Matlab to carry out the required matrix multiplications.