The program takes 3 inputs:

1.　　A letter of the alphabet that will remain unencoded (e.g. "J")

2.　　A 5-letter keyword (e.g. "BREAK")

3.　　A message to be encrypted (e.g. "COMPUTERSCIENCE"). You may assume that it does not contain any spaces or punctuation.

To form the code, first create a 5x5 matrix in which the first row is your keyword and the other elements are the remaining letters of the alphabet (minus the unencoded letter):

B R E A K

C D F G H

I L M N O

P Q S T U

V W X Y Z

-Encryption code