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Top Kek (crypto 50)

###ENG PL

In the task we get encrypted data:

KEK! TOP!! KEK!! TOP!! KEK!! TOP!! KEK! TOP!! KEK!!! TOP!! KEK!!!! TOP! KEK! TOP!! KEK!! TOP!!! KEK! TOP!!!! KEK! TOP!! KEK! TOP! KEK! TOP! KEK! TOP! KEK!!!! TOP!! KEK!!!!! TOP!! KEK! TOP!!!! KEK!! TOP!! KEK!!!!! TOP!! KEK! TOP!!!! KEK!! TOP!! KEK!!!!! TOP!! KEK! TOP!!!! KEK!! TOP!! KEK!!!!! TOP!! KEK! TOP!!!! KEK!! TOP!! KEK!!!!! TOP! KEK! TOP! KEK!!!!! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK!! TOP!! KEK!!! TOP! KEK! TOP!! KEK! TOP!! KEK! TOP! KEK! TOP! KEK! TOP!!!!! KEK! TOP!! KEK! TOP! KEK!!!!! TOP!! KEK! TOP! KEK!!! TOP! KEK! TOP! KEK! TOP!! KEK!!! TOP!! KEK!!! TOP! KEK! TOP!! KEK! TOP!!! KEK!! TOP! KEK!!! TOP!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK!!! TOP!! KEK!! TOP!!! KEK! TOP! KEK! TOP! KEK! TOP! KEK!! TOP!!! KEK!! TOP! KEK! TOP!!!!! KEK! TOP!!! KEK!! TOP! KEK!!! TOP!! KEK!!! TOP! KEK! TOP!! KEK!! TOP!!! KEK! TOP! KEK!! TOP! KEK!!!! TOP!!! KEK! TOP! KEK!!! TOP! KEK! TOP!!!!! KEK! TOP!! KEK! TOP!!! KEK!!! TOP!! KEK!!!!! TOP! KEK! TOP! KEK! TOP!!! KEK! TOP! KEK! TOP!!!!! KEK!! TOP!! KEK! TOP! KEK!!! TOP! KEK! TOP! KEK!! TOP! KEK!!! TOP!! KEK!! TOP!! KEK! TOP! KEK! TOP!!!!! KEK! TOP!!!! KEK!! TOP! KEK!! TOP!! KEK!!!!! TOP!!! KEK! TOP! KEK! TOP! KEK! TOP! KEK! TOP!!!!! KEK! TOP!! KEK! TOP! KEK!!!!! TOP!! KEK! TOP! KEK!!! TOP!!! KEK! TOP!! KEK!!! TOP!! KEK!!! TOP! KEK! TOP!! KEK! TOP!!! KEK!! TOP!! KEK!! TOP!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP!! KEK!! TOP!! KEK!! TOP!!! KEK! TOP! KEK! TOP! KEK! TOP!! KEK! TOP!!! KEK!! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK!! TOP! KEK! TOP!! KEK!! TOP!! KEK!! TOP!! KEK! TOP! KEK!! TOP! KEK! TOP!! KEK!! TOP! KEK!!!! TOP! KEK!! TOP! KEK!!!! TOP! KEK!! TOP! KEK!!!! TOP! KEK! TOP!!!!! KEK! TOP!

We initially thought this is some kind of esolang similar to Ook! but then we figured that it has to be simpler - there is only alternating TOP and KEK and ! after them. After a while we finally guessed that this can be simply binary code with TOP or KEK signaling 0/1 and ! signaling repeats.

So we prepared a code:

import codecs

with codecs.open("data.txt") as input_file:
    data = input_file.read()
    result = ""
    for entry in data.split(" "):
        repeat = len(entry) - 3
        if entry[0] == "T":
            result += "1" * repeat
        else:
            result += "0" * repeat
    print(result)
    chunked = [result[i:i + 8] for i in range(0, len(result) - 7, 8)]
    print(chunked)
    converted = [chr(int(c, 2)) for c in chunked]
    print("".join(converted))

Which gave us the flag: flag{T0o0o0o0o0P______1m_h4V1nG_FuN_r1gHt_n0W_4R3_y0u_h4v1ng_fun______K3K!!!}

###PL version

W zadaniu dostajemy zakodowane dane:

KEK! TOP!! KEK!! TOP!! KEK!! TOP!! KEK! TOP!! KEK!!! TOP!! KEK!!!! TOP! KEK! TOP!! KEK!! TOP!!! KEK! TOP!!!! KEK! TOP!! KEK! TOP! KEK! TOP! KEK! TOP! KEK!!!! TOP!! KEK!!!!! TOP!! KEK! TOP!!!! KEK!! TOP!! KEK!!!!! TOP!! KEK! TOP!!!! KEK!! TOP!! KEK!!!!! TOP!! KEK! TOP!!!! KEK!! TOP!! KEK!!!!! TOP!! KEK! TOP!!!! KEK!! TOP!! KEK!!!!! TOP! KEK! TOP! KEK!!!!! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK!! TOP!! KEK!!! TOP! KEK! TOP!! KEK! TOP!! KEK! TOP! KEK! TOP! KEK! TOP!!!!! KEK! TOP!! KEK! TOP! KEK!!!!! TOP!! KEK! TOP! KEK!!! TOP! KEK! TOP! KEK! TOP!! KEK!!! TOP!! KEK!!! TOP! KEK! TOP!! KEK! TOP!!! KEK!! TOP! KEK!!! TOP!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK!!! TOP!! KEK!! TOP!!! KEK! TOP! KEK! TOP! KEK! TOP! KEK!! TOP!!! KEK!! TOP! KEK! TOP!!!!! KEK! TOP!!! KEK!! TOP! KEK!!! TOP!! KEK!!! TOP! KEK! TOP!! KEK!! TOP!!! KEK! TOP! KEK!! TOP! KEK!!!! TOP!!! KEK! TOP! KEK!!! TOP! KEK! TOP!!!!! KEK! TOP!! KEK! TOP!!! KEK!!! TOP!! KEK!!!!! TOP! KEK! TOP! KEK! TOP!!! KEK! TOP! KEK! TOP!!!!! KEK!! TOP!! KEK! TOP! KEK!!! TOP! KEK! TOP! KEK!! TOP! KEK!!! TOP!! KEK!! TOP!! KEK! TOP! KEK! TOP!!!!! KEK! TOP!!!! KEK!! TOP! KEK!! TOP!! KEK!!!!! TOP!!! KEK! TOP! KEK! TOP! KEK! TOP! KEK! TOP!!!!! KEK! TOP!! KEK! TOP! KEK!!!!! TOP!! KEK! TOP! KEK!!! TOP!!! KEK! TOP!! KEK!!! TOP!! KEK!!! TOP! KEK! TOP!! KEK! TOP!!! KEK!! TOP!! KEK!! TOP!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP!! KEK!! TOP!! KEK!! TOP!!! KEK! TOP! KEK! TOP! KEK! TOP!! KEK! TOP!!! KEK!! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK! TOP!!!!! KEK! TOP! KEK!! TOP! KEK! TOP!! KEK!! TOP!! KEK!! TOP!! KEK! TOP! KEK!! TOP! KEK! TOP!! KEK!! TOP! KEK!!!! TOP! KEK!! TOP! KEK!!!! TOP! KEK!! TOP! KEK!!!! TOP! KEK! TOP!!!!! KEK! TOP!

Początkowo myśleliśmy że to jakiś ezoteryczny język programowania podobny do Ook! ale potem doszliśmy do wniosku, że musi być jeszcze prościej - mamy w końcu tylko naprzemienne TOP i KEK oraz ! za każdym z nich. Po pewnym czasie zgadliśmy wreszcie, że to może być po prostu kod binarny gdzie TOP lub KEK określają 0/1 a ! oznacza powtórzenia.

Napisaliśmy prosty skrypt:

import codecs

with codecs.open("data.txt") as input_file:
    data = input_file.read()
    result = ""
    for entry in data.split(" "):
        repeat = len(entry) - 3
        if entry[0] == "T":
            result += "1" * repeat
        else:
            result += "0" * repeat
    print(result)
    chunked = [result[i:i + 8] for i in range(0, len(result) - 7, 8)]
    print(chunked)
    converted = [chr(int(c, 2)) for c in chunked]
    print("".join(converted))

Który dał nam flagę: flag{T0o0o0o0o0P______1m_h4V1nG_FuN_r1gHt_n0W_4R3_y0u_h4v1ng_fun______K3K!!!}