class ScrabbleCipher:
    def __init__(self, keyword):
        self.alpha = string.ascii_uppercase
        self.keyword = keyword.upper()
        self.initialAlpha()

    def initialAlpha(self):
        for i in self.keyword:
            self.shuffle(i)
        self.initial = self.alpha


    def shuffle(self, letter):
        try:
            tg = self.alpha.index(letter)
        except Exception as e:
            print letter
        self.alpha = self.alpha[tg+1:] + letter + self.alpha[:tg]


    def encrypt(self, plaintext):
        self.alpha = self.initial
        plaintext = plaintext.upper()
        ciphertext = ''
        for i in plaintext:
            pos = string.ascii_uppercase.index(i)
            ciphertext += self.alpha[pos]
            self.shuffle(i)
        return ciphertext