import binascii
from pwn import * # pwntools

# connect
r = remote('2018shell.picoctf.com', 1225)

# binary
print r.readline() # get the first line over with
word1 = r.readline() # for some reason the word for part 1 is echoed, so read it in
print r.recvuntil("Input:") # skip to where we input word 1
r.send(word1) # send it!

# hex
print r.recvuntil("the ") # skip to right position to read in the hex string
word2 = r.recvuntil(" ") # read string up to the space
word2_hex = word2[:-1] # strip the space
word2_ascii = binascii.unhexlify(word2_hex) # convert to ascii
print r.recvuntil("Input:") # skip to entry
r.send(word2_ascii + "\n") # send it!

# octal
print r.recvuntil("the  ") # skip to integer list
word3 = ""
while True:
    number = r.recvn(3) # read integer
    if number != "as ": # end of the list?
        word3 += chr(int(number,8)) # convert to decimal!
        r.recvn(1) # and discard the space
    else:
        break # we're done - dump out
print r.recvuntil("Input:") # skip to entry
r.send(word3 + "\n") # send it!
r.interactive() # read the rest of the input