4. 110 points] A Caesar cypher is a weak form of encryption that involves "rotating each letter by a fixed number of places. To rotate a letter means to shift it through the alphabet, wrapping around to the beginning if necessary,so "A" rotated by 3 is "D, and "B" rotated by -2 is "Z: To rotate a word, rotate each letter by the same amount. For example, "cheer" rotated by 7 is jolly" and "melon" rotated by -10 is "cubed". Write the algorithm and program that prompts for a word and an integer, then encrypts the word by rotating each letter by the input integer