Assignment: The Caesar Cipher technique is one of the earliest and simplest method of encryption. It's a substitution cipher, i.e., each letter of a given text is replaced by a letter some fixed number of positions down the alphabet. For example with a shift of 1, A would be replaced by B, B would become C, and so on. The encryption equation is E(x) = (x + n) % 26 The x = the numeric letter value, n range (0-25) number of shifts, and (% 26) is so that whatever value your result is, it will stay within the alphabet However, since we will be looking at characters in strings, you need to implement ASCIl code so that your equation will look more like letter-( ( (letter-A) + shift ) % 26 + A)) if it is upper case Or letter-( ( (letter-a) + shift ) % 26 + 'a' ) ) if it is lower case You subtract A and 'a, in order to get the value of the letter in ASCII code, letters are assigned values. For example, B' is 66. If I subtract the value of A (65) then I get 1. This helps me encode because I can get the values 0-25 for each letter Your assignment is to implement a dynamic string array in order to store a message of variable length, and then a pointer to iterate through each letter of the string in order to encrypt it using the equations given above You will need to ask the user for the amount of words in the message and then create your dynamic array that way. If the amount of words is a negative number or equal to zero you should output to the screen "Invalid value. Please Re-enter a number of positive value until they have the correct input. Get Message Use cin to get each word the user wishes to put into the message After they have input all the strings required, ask for the number of letter shifts they would like to do Encrypt Encrypt each letter in each string using the equations provided above if the getMessage pointer isn't null (aka if Get Message option has already been called) Print Message Print out the encrypted or unencrypted message Quit Simply quits out of the loop Input: You many assume that the input to be encrypted will only consist of capital and lower letters, and no other symbols such as white spaces numbers, or special characters will have to be encrypted n order to choose the different options you will take an integer value as input. 1 is for Get Message, 2 is for Encrypt, 3 is for Print, 4 is for Quit Requirements Use a dynamic array to store a message of variable length (not using dynamic array will receive 50% penalty) Use a pointer to iterate through each string and encrypt it Do not allow for number of letter shifts to be> 26 (Must be in the range of 0-25 aka the range of 26) [Ex: If I give you 27, your shift should end up being 1] [Hint: %] Do not expect int to hold all possible values when I input the value of shift, test very large numbers Print out your message using pointer arithmetic (ex: *p: p++) DO NOT iterate through your pointer like an array when printing!! #Include using namespace std; int main) //declare variables to store user input bool cont true; //implement a loop so that it will continue asking until the user provides a positive integer // the following provides ONLY part of the loop body, which you should complete cout