caesarCipher("middle-Outz", 2) ➞ "okffng-Qwvb"
// m -> o
// i -> k
// d -> f
// d -> f
// l -> n
// e -> g
// - -
// O -> Q
// u -> w
// t -> v
// z -> b
caesarCipher("Always-Look-on-the-Bright-Side-of-Life", 5)
➞ "Fqbfdx-Qttp-ts-ymj-Gwnlmy-Xnij-tk-Qnkj"
caesarCipher("A friend in need is a friend indeed", 20)
➞ "U zlcyhx ch hyyx cm u zlcyhx chxyyx"
caesarCipher("middle-Outz", 2) ➞ "okffng-Qwvb"
// m -> o
// i -> k
// d -> f
// d -> f
// l -> n
// e -> g
// - -
// O -> Q
// u -> w
// t -> v
// z -> b
caesarCipher("Always-Look-on-the-Bright-Side-of-Life", 5)
➞ "Fqbfdx-Qttp-ts-ymj-Gwnlmy-Xnij-tk-Qnkj"
caesarCipher("A friend in need is a friend indeed", 20)
➞ "U zlcyhx ch hyyx cm u zlcyhx chxyyx"