In this challenge you will be asked to insert a file extension for the given binary part of a file. You must correctly answer for all questions and then the flag occuers. Some files can be identificated by `file` utility, but I've also used google and guessing.One of the interesting file:```b'652076206c207a207b207320302075206e2064205f20302066'```If you decode it, it looks like a part of the flag, but it is not :)
Python code:```from pwn import *
try:    r = remote('35.198.113.131', 60000)    print r.recvuntil("\n")    print r.recvuntil("\n")     while True:        f = r.recvuntil("\n")        print f        
        if 'WEBP' in f:            print 'WEBP'            r.sendline('WEBP')        elif '[Content_Types].xml' in f:            print 'DOCX'            r.sendline('DOCX')        elif '#!/bin/bash\\nsudo' in f:            print 'SH'            r.sendline('SH')        elif 'BM|' in f:            print 'BMP'            r.sendline('BMP')        elif 'Date: Sun,' in f:            print 'EML'            r.sendline('EML')        elif 'PNG' in f:            print 'PNG'            r.sendline('PNG')        elif b'%PDF-1.6' in f:            print 'PDF'            r.sendline('PDF')        elif 'KDMV' in f:            print 'VMDK'            r.sendline('VMDK')        elif 'debian' in f:            print 'DEB'            r.sendline('DEB')        elif '#include' in f:            print 'C'            r.sendline('C')        elif 'matroskaB' in f:            print 'MKV'            r.sendline('MKV')        elif 'GIF89' in f:            print 'GIF'            r.sendline('GIF')        elif 'gimp' in f:            print 'XCF'            r.sendline('XCF')        elif 'ELF' in f:            print 'ELF'            r.sendline('ELF')        elif 'ID3' in f:            print 'MP3'            r.sendline('MP3')        elif '7z\\xbc\\xaf' in f:            print '7Z'            r.sendline('7Z')        elif 'CWS' in f:            print 'SWF'            r.sendline('SWF')        elif 'announce' in f:            print 'TORRENT'            r.sendline('TORRENT')        elif 'flag.txt4' in f:            print 'ZIP'            r.sendline('ZIP')        elif 'SQLite' in f:            print 'DB'            r.sendline('DB')        elif '3gp4' in f:            print '3GP'            r.sendline('3GP')        elif '\\x1f\\x8b\\x08\\x00\\x00\\x00\\x00' in f:            print 'GZ'            r.sendline('GZ')        elif b'\\x00\\x00\\x01\\x00\\x07\\x00\\x00\\x00' in f:            print 'ICO'            r.sendline('ICO')        elif 'JFIF' in f:            print 'JPG'            r.sendline('JPG')        elif '\\xd4\\xc3\\xb2\\xa1\\x02\\x00\\x04\\x00' in f:            print 'PCAP'            r.sendline('PCAP')        elif '\\xff\\xfe\\r\\x00\\n\\x00' in f:            print 'INI'            r.sendline('INI')        elif '\\xebc\\x90\\xd0\\xbc\\x00' in f:            print 'BIN'            r.sendline('BIN')        elif '\\xed\\xab\\xee\\xdb\\x03\\x00' in f:            print 'RPM'            r.sendline('RPM')        elif 'IDA1' in f:            print 'IDB'            r.sendline('IDB')        elif '652076206c207a207b20' in f:            print 'TXT'            r.sendline('TXT')        elif "version: '3'" in f:            print 'YML'            r.sendline('YML')        else:            print f            break     r.interactive()except:    raise```
The flag:```evlz{thanos_tapped_you_back_in}ctf```