BUILD A CAESAR CIPHER

Extension (1)

This code will allow the user to repeat the program until they input "end"

key = int(input("Enter the key you wish to use: "))
    
letter = input("Enter a letter you wish to encrypt / decrypt")

while letter != "end":

    letter_number = ord(letter)
    
    letter_number_add_key = letter_number + key
    
    new_letter = chr(letter_number_add_key)
    
    print("New Letter =")
    print(new_letter)

    letter = input("Enter another letter or type end: ")

print("Goodbye!")