data = open('reverse','rb').read()[::-1]
flag = open('flag.png','wb')
for i in data:
   swap = ''
   k = i.encode('hex')
   swap+= str(k[1]) + str(k[0])
   flag.write(swap.decode('hex'))
#flag{758d7fa2762ab838c4835f1995e151d2}