Python - SENADO 2

two = ["A", "B", "C"]
three = ["D", "E", "F"]
four = ["G", "H", "I"]
five = ["J", "K", "L"]
six = ["M", "N", "O"]
seven = ["P", "Q", "R", "S"]
eight = ["T", "U", "V"]
nine = ["W", "X", "Y", "Z"]
other = ["1", "0", "-"]

symbols =[two, three, four, five, six, seven, eight, nine]

number = input()
counter = 0

for byte in number:
    byte = number[counter].upper()
    if byte in two:
        print("2", end="")
    elif byte in three:
        print("3", end="")
    elif byte in four:
        print("4", end="")
    elif byte in five:
        print("5", end="")
    elif byte in six:
        print("6", end="")
    elif byte in seven:
        print("7", end="")
    elif byte in eight:
        print("8", end="")
    elif byte in nine:
            print("9", end="")
    else:
        print(byte,end="")
    counter += 1
    if counter > 29:
        break

print("\n")