import sys
# razor4x - tasteless
f=open("rev","rb")
d=open("rev.jpg","ab")
binary=""
i=0
while i<7698:
    binary+=f.read(1)
    i+=1

for i in range(len(binary)-1,-1,-1):
    tmp=hex(ord(binary[i]))[2:]
    if len(tmp)==1:
        tmp="0"+tmp
    tmp=tmp[::-1]
    d.write(chr(int(tmp,16)))