A ".pyc" file is given, so the first step is to decompile it using *uncompyle6*.The challenge to anything unless you provide the correct flag.Inside the file there is an interesting string:babababa = 'you-may-need-this-key-1337' Looking in the code where the string is used, we can find a `lababa` function:```pythondef lababa(lebula):    alalalalalalal = [     73, 13, 19, 88, 88, 2, 77, 26, 95, 85, 11, 23, 114, 2, 93, 54, 71, 67, 90, 8, 77, 26, 0, 3, 93, 68]    result = ''    for belu in range(len(alalalalalalal)):        if lebula[belu] != chr(alalalalalalal[belu] ^ ord(babababa[belu])):            return 'bbblalaabalaabbblala'        b2a = ''        a2b = [122, 86, 75, 75, 92, 90, 77, 24, 24, 24, 25, 106, 76, 91, 84, 80, 77, 25, 77, 81, 92, 25, 92, 87, 77, 80, 75, 92, 25, 74, 77, 75, 80, 87, 94, 25, 88, 74, 25, 95, 85, 88, 94]        for bbb in a2b:            b2a += chr(bbb ^ 57)        else:            return b2a```Function reverse solver:```pythona2b = [122, 86, 75, 75, 92, 90, 77, 24, 24, 24, 25, 106, 76, 91, 84, 80, 77, 25, 77, 81, 92, 25, 92, 87, 77, 80, 75, 92, 25, 74, 77, 75, 80, 87, 94, 25, 88, 74, 25, 95, 85, 88, 94]b2a = '' for bbb in a2b:     b2a += chr(bbb ^ 57) print(b2a)
res=''babababa = 'you-may-need-this-key-1337' alalalalalalal = [ 73, 13, 19, 88, 88, 2, 77, 26, 95, 85, 11, 23, 114, 2, 93, 54, 71, 67, 90, 8, 77, 26, 0, 3, 93, 68]for belu in range(len(alalalalalalal)):    res+=(chr(alalalalalalal[belu] ^ ord(babababa[belu])))print(res)```# FLAG`darkCON{0bfu5c4710ns_v5_4n1m4710ns}`