# Phone Letters
phone_letters = [
    "1 = ''", "2 = 'ABC'", "3 = 'DEF'",
    "4 = 'GHI'", "5 = 'JKL'", "6 = 'MNO'",
    "7 = 'PQRS'", "8 = 'TUV'", "9 = 'WXYZ'",
    "*", "0 = ' '", "#"
]
print(phone_letters[0:3])
print(phone_letters[3:6])
print(phone_letters[6:9])
print(phone_letters[9:12])
