def tobits(s):
    result = []
    for c in s:
        bits = bin(ord(c))[2:]
        bits = '00000000'[len(bits):] + bits
        result.extend([int(b) for b in bits])
    return result


def frombits(bits):
    chars = []
    for b in range(len(bits) // 8):
        byte = bits[b * 8:(b + 1) * 8]
        chars.append(chr(int(''.join([str(bit) for bit in byte]), 2)))
    return ''.join(chars)


def Initial_Transpose(current_bits):
    PI = [58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62,
        54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, 57, 49, 
        41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3, 61, 53, 45, 37,
        29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7]
    result = []
    for i in range(0, 64):
        result.append(current_bits[PI[i] - 1])
    return result


def to56bits(key_in_64bits):
    CP_1 = [57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59,
        51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 
        15, 7, 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5,
        28, 20, 12, 4]
    result = []
    for i in range(0, 56):
        result.append(key_in_64bits[CP_1[i] - 1])
    return result


def keyto48bits(key_in_56bits):
    CP_2 = [14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, 23, 19, 12, 4, 26, 
        8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33,
        48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32]
    result = []
    for i in range(0, 48):
        result.append(key_in_56bits[CP_2[i] - 1])
    return result


def getfirsthalf(key_in_56bits, n):
    result = []
    temp = []
    for i in range(0, n):
        temp.append(key_in_56bits[i])
    for i in range(0, 28):
        result.append(key_in_56bits[i])
    for i in range(0, 28 - n):
        result[i] = result[i + n]
    for i in range(0, n):
        result[28 - n + i] = temp[i]
    return result


def getsecondhalf(key_in_56bits, n):
    result = []
    temp = []
    for i in range(0, n):
        temp.append(key_in_56bits[i + 28])
    for i in range(0, 28):
        result.append(key_in_56bits[i + 28])
    for i in range(0, 28 - n):
        result[i] = result[i + n]
    for i in range(0, n):
        result[28 - n + i] = temp[i]
    return result


def getfirsthalftext(plaintext):
    result = []
    for i in range(0, 32):
        result.append(plaintext[i])
    return result


def getsecondhalftext(plaintext):
    result = []
    for i in range(0, 32):
        result.append(plaintext[i + 32])
    return result


def expandbits(right_from_text):
    E = [32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 12, 13,
        14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24,
        25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1]
    result = []
    for i in range(0, 48):
        result.append(right_from_text[E[i] - 1])
    return result


def samplebit(Xored_bit):
    PI_2 = [35, 38, 46, 6, 43, 40, 14, 45, 33, 19, 26, 15, 23, 8, 22, 10, 
        12, 11, 5, 25, 27, 21, 16, 31, 28, 32, 34, 24, 9, 37, 2, 1]
    result = []
    for i in range(0, 32):
        result.append(Xored_bit[PI_2[i] - 1])
    return result


def PBox(current_bits):
    P = [16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, 2, 8,
        24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25]
    result = []
    for i in range(0, 32):
        result.append(current_bits[P[i] - 1])
    return result


def Final_Transpose(current_bits):
    PI_1 = [40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47, 15, 55, 23, 63, 31, 
        38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45, 13, 53, 21, 61, 29, 36, 4,
        44, 12, 52, 20, 60, 28, 35, 3, 43, 11, 51, 19, 59, 27, 34, 2, 42, 
        10, 50, 18, 58, 26, 33, 1, 41, 9, 49, 17, 57, 25]
    result = []
    for i in range(0, 64):
        result.append(current_bits[PI_1[i] - 1])
    return result

45426b7f273140bd558cd9c6b6037d6955ab3ec9
def tobits(s):
    result = []
    for c in s:
        bits = bin(ord(c))[2:]
        bits = '00000000'[len(bits):] + bits
        result.extend([int(b) for b in bits])
    return result


<mask token>


def to56bits(key_in_64bits):
    CP_1 = [57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59,
        51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 
        15, 7, 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5,
        28, 20, 12, 4]
    result = []
    for i in range(0, 56):
        result.append(key_in_64bits[CP_1[i] - 1])
    return result


def keyto48bits(key_in_56bits):
    CP_2 = [14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, 23, 19, 12, 4, 26, 
        8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33,
        48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32]
    result = []
    for i in range(0, 48):
        result.append(key_in_56bits[CP_2[i] - 1])
    return result


def getfirsthalf(key_in_56bits, n):
    result = []
    temp = []
    for i in range(0, n):
        temp.append(key_in_56bits[i])
    for i in range(0, 28):
        result.append(key_in_56bits[i])
    for i in range(0, 28 - n):
        result[i] = result[i + n]
    for i in range(0, n):
        result[28 - n + i] = temp[i]
    return result


<mask token>


def getsecondhalftext(plaintext):
    result = []
    for i in range(0, 32):
        result.append(plaintext[i + 32])
    return result


def expandbits(right_from_text):
    E = [32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 12, 13,
        14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24,
        25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1]
    result = []
    for i in range(0, 48):
        result.append(right_from_text[E[i] - 1])
    return result


def samplebit(Xored_bit):
    PI_2 = [35, 38, 46, 6, 43, 40, 14, 45, 33, 19, 26, 15, 23, 8, 22, 10, 
        12, 11, 5, 25, 27, 21, 16, 31, 28, 32, 34, 24, 9, 37, 2, 1]
    result = []
    for i in range(0, 32):
        result.append(Xored_bit[PI_2[i] - 1])
    return result


def PBox(current_bits):
    P = [16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, 2, 8,
        24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25]
    result = []
    for i in range(0, 32):
        result.append(current_bits[P[i] - 1])
    return result


<mask token>

def tobits(s):
    result = []
    for c in s:
        bits = bin(ord(c))[2:]
        bits = '00000000'[len(bits):] + bits
        result.extend([int(b) for b in bits])
    return result


def frombits(bits):
    chars = []
    for b in range(len(bits) // 8):
        byte = bits[b * 8:(b + 1) * 8]
        chars.append(chr(int(''.join([str(bit) for bit in byte]), 2)))
    return ''.join(chars)


<mask token>


def to56bits(key_in_64bits):
    CP_1 = [57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59,
        51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 
        15, 7, 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5,
        28, 20, 12, 4]
    result = []
    for i in range(0, 56):
        result.append(key_in_64bits[CP_1[i] - 1])
    return result


def keyto48bits(key_in_56bits):
    CP_2 = [14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, 23, 19, 12, 4, 26, 
        8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33,
        48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32]
    result = []
    for i in range(0, 48):
        result.append(key_in_56bits[CP_2[i] - 1])
    return result


def getfirsthalf(key_in_56bits, n):
    result = []
    temp = []
    for i in range(0, n):
        temp.append(key_in_56bits[i])
    for i in range(0, 28):
        result.append(key_in_56bits[i])
    for i in range(0, 28 - n):
        result[i] = result[i + n]
    for i in range(0, n):
        result[28 - n + i] = temp[i]
    return result


<mask token>


def getsecondhalftext(plaintext):
    result = []
    for i in range(0, 32):
        result.append(plaintext[i + 32])
    return result


def expandbits(right_from_text):
    E = [32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 12, 13,
        14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24,
        25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1]
    result = []
    for i in range(0, 48):
        result.append(right_from_text[E[i] - 1])
    return result


def samplebit(Xored_bit):
    PI_2 = [35, 38, 46, 6, 43, 40, 14, 45, 33, 19, 26, 15, 23, 8, 22, 10, 
        12, 11, 5, 25, 27, 21, 16, 31, 28, 32, 34, 24, 9, 37, 2, 1]
    result = []
    for i in range(0, 32):
        result.append(Xored_bit[PI_2[i] - 1])
    return result


def PBox(current_bits):
    P = [16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, 2, 8,
        24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25]
    result = []
    for i in range(0, 32):
        result.append(current_bits[P[i] - 1])
    return result


<mask token>

def tobits(s):
    result = []
    for c in s:
        bits = bin(ord(c))[2:]
        bits = '00000000'[len(bits):] + bits
        result.extend([int(b) for b in bits])
    return result


def frombits(bits):
    chars = []
    for b in range(len(bits) // 8):
        byte = bits[b * 8:(b + 1) * 8]
        chars.append(chr(int(''.join([str(bit) for bit in byte]), 2)))
    return ''.join(chars)


def Initial_Transpose(current_bits):
    PI = [58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62,
        54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, 57, 49, 
        41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3, 61, 53, 45, 37,
        29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7]
    result = []
    for i in range(0, 64):
        result.append(current_bits[PI[i] - 1])
    return result


def to56bits(key_in_64bits):
    CP_1 = [57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59,
        51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 
        15, 7, 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5,
        28, 20, 12, 4]
    result = []
    for i in range(0, 56):
        result.append(key_in_64bits[CP_1[i] - 1])
    return result


def keyto48bits(key_in_56bits):
    CP_2 = [14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, 23, 19, 12, 4, 26, 
        8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33,
        48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32]
    result = []
    for i in range(0, 48):
        result.append(key_in_56bits[CP_2[i] - 1])
    return result


def getfirsthalf(key_in_56bits, n):
    result = []
    temp = []
    for i in range(0, n):
        temp.append(key_in_56bits[i])
    for i in range(0, 28):
        result.append(key_in_56bits[i])
    for i in range(0, 28 - n):
        result[i] = result[i + n]
    for i in range(0, n):
        result[28 - n + i] = temp[i]
    return result


<mask token>


def getfirsthalftext(plaintext):
    result = []
    for i in range(0, 32):
        result.append(plaintext[i])
    return result


def getsecondhalftext(plaintext):
    result = []
    for i in range(0, 32):
        result.append(plaintext[i + 32])
    return result


def expandbits(right_from_text):
    E = [32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 12, 13,
        14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24,
        25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1]
    result = []
    for i in range(0, 48):
        result.append(right_from_text[E[i] - 1])
    return result


def samplebit(Xored_bit):
    PI_2 = [35, 38, 46, 6, 43, 40, 14, 45, 33, 19, 26, 15, 23, 8, 22, 10, 
        12, 11, 5, 25, 27, 21, 16, 31, 28, 32, 34, 24, 9, 37, 2, 1]
    result = []
    for i in range(0, 32):
        result.append(Xored_bit[PI_2[i] - 1])
    return result


def PBox(current_bits):
    P = [16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, 2, 8,
        24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25]
    result = []
    for i in range(0, 32):
        result.append(current_bits[P[i] - 1])
    return result


def Final_Transpose(current_bits):
    PI_1 = [40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47, 15, 55, 23, 63, 31, 
        38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45, 13, 53, 21, 61, 29, 36, 4,
        44, 12, 52, 20, 60, 28, 35, 3, 43, 11, 51, 19, 59, 27, 34, 2, 42, 
        10, 50, 18, 58, 26, 33, 1, 41, 9, 49, 17, 57, 25]
    result = []
    for i in range(0, 64):
        result.append(current_bits[PI_1[i] - 1])
    return result

def tobits(s):
    result = []
    for c in s:
        bits = bin(ord(c))[2:]
        bits = '00000000'[len(bits):] + bits
        result.extend([int(b) for b in bits])
    return result


def frombits(bits):
    chars = []
    for b in range(len(bits) // 8):
        byte = bits[b * 8:(b + 1) * 8]
        chars.append(chr(int(''.join([str(bit) for bit in byte]), 2)))
    return ''.join(chars)


def Initial_Transpose(current_bits):
    PI = [58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4, 62,
        54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8, 57, 49, 
        41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3, 61, 53, 45, 37,
        29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7]
    result = []
    for i in range(0, 64):
        result.append(current_bits[PI[i] - 1])
    return result


def to56bits(key_in_64bits):
    CP_1 = [57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59,
        51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36, 63, 55, 47, 39, 31, 23, 
        15, 7, 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, 13, 5,
        28, 20, 12, 4]
    result = []
    for i in range(0, 56):
        result.append(key_in_64bits[CP_1[i] - 1])
    return result


def keyto48bits(key_in_56bits):
    CP_2 = [14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10, 23, 19, 12, 4, 26, 
        8, 16, 7, 27, 20, 13, 2, 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33,
        48, 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32]
    result = []
    for i in range(0, 48):
        result.append(key_in_56bits[CP_2[i] - 1])
    return result


def getfirsthalf(key_in_56bits, n):
    result = []
    temp = []
    for i in range(0, n):
        temp.append(key_in_56bits[i])
    for i in range(0, 28):
        result.append(key_in_56bits[i])
    for i in range(0, 28 - n):
        result[i] = result[i + n]
    for i in range(0, n):
        result[28 - n + i] = temp[i]
    return result


def getsecondhalf(key_in_56bits, n):
    result = []
    temp = []
    for i in range(0, n):
        temp.append(key_in_56bits[i + 28])
    for i in range(0, 28):
        result.append(key_in_56bits[i + 28])
    for i in range(0, 28 - n):
        result[i] = result[i + n]
    for i in range(0, n):
        result[28 - n + i] = temp[i]
    return result


def getfirsthalftext(plaintext):
    result = []
    for i in range(0, 32):
        result.append(plaintext[i])
    return result


def getsecondhalftext(plaintext):
    result = []
    for i in range(0, 32):
        result.append(plaintext[i + 32])
    return result


def expandbits(right_from_text):
    E = [32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 12, 13,
        14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22, 23, 24, 25, 24,
        25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1]
    result = []
    for i in range(0, 48):
        result.append(right_from_text[E[i] - 1])
    return result


def samplebit(Xored_bit):
    PI_2 = [35, 38, 46, 6, 43, 40, 14, 45, 33, 19, 26, 15, 23, 8, 22, 10, 
        12, 11, 5, 25, 27, 21, 16, 31, 28, 32, 34, 24, 9, 37, 2, 1]
    result = []
    for i in range(0, 32):
        result.append(Xored_bit[PI_2[i] - 1])
    return result


def PBox(current_bits):
    P = [16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10, 2, 8,
        24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25]
    result = []
    for i in range(0, 32):
        result.append(current_bits[P[i] - 1])
    return result


def Final_Transpose(current_bits):
    PI_1 = [40, 8, 48, 16, 56, 24, 64, 32, 39, 7, 47, 15, 55, 23, 63, 31, 
        38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45, 13, 53, 21, 61, 29, 36, 4,
        44, 12, 52, 20, 60, 28, 35, 3, 43, 11, 51, 19, 59, 27, 34, 2, 42, 
        10, 50, 18, 58, 26, 33, 1, 41, 9, 49, 17, 57, 25]
    result = []
    for i in range(0, 64):
        result.append(current_bits[PI_1[i] - 1])
    return result
