import string
key = 5
clearText = "Veni vidi vici"
print(clearText)

alphabet = string.ascii_uppercase
ciphertext = ""
for letter in clearText.upper():
    if letter in alphabet:
        index = alphabet.find(letter)
        cIndex = (index + key) % 26
        letter = alphabet[cIndex]
    ciphertext = ciphertext + letter
    
print(ciphertext)