functions.py

def reverse(text):
    return text[::-1]


def un_reverse(text):
    return text[::-1]


def if_function(text):
    new_text = []
    for c in text:
        if int(c / 2 - 0.5) == int(c / 2):
            new_text.append(c // 2)
        else:
            new_text.append(c * 2)
    return new_text


def new_if_function(text):
    new_text = []
    for c in text:
        x1 = c // 2
        x2 = c * 2
        if int(c / 2 - 0.5) == int(c / 2):
            new_text.append(x1)
        else:
            new_text.append(x2)
    return new_text

def check_if(text):
    if if_function(text) == list(map(ord, "36ÂÎö:4bæ¾Òæ¾36\x1aÎú")):
        print("Yay! Correct!")
    else:
        print("Sorry, that's not right. :(")


def plus(text):
    return ''.join(
        list(map(chr, list(map(lambda x: x + 1, list(map(ord, text)))))))


def un_plus(text):
    return ''.join(
        list(map(chr, list(map(lambda x: x - 1, list(map(ord, text)))))))


def shuffle(text):  # odd number of characters only
    new_text = []
    for i in range(len(text)):
        new_text.append(text[(283 * i + 3) % len(text)])
    return new_text


def un_shuffle(text):
    old_text = ['a'] * len(text)
    for i in range(len(text)):
        old_text[(283 * i + 3) % len(text)] = text[i]
    return ''.join(old_text)


def rewrite(text):
    new_text = []
    for i in range(len(text)):
        new_text.append(text[(283 * i + 3) % len(text)] + i)
    return new_text


def un_rewrite(text):
    old_text = ['a'] * len(text)
    for i in range(len(text)):
        old_text[(283 * i + 3) % len(text)] = chr(ord(text[i]) - i)
    return ''.join(old_text)


if __name__ == "__main__":
    list(map(ord, "flag{s0lv3d}"))
    print(shuffle(rewrite(list(map(ord, "flag{s0lv3d}")))))