2019YISF-quals-misc150.py

from pwn import *
from ast import literal_eval

p = remote('218.158.141.182',52387)

for i in range(100):
	payload=""
	print p.recvuntil('Step :  ' + str(i+1) + "\n\n")
	text = p.recvline()
	text = list(text)
	del(text[-1])
	heigth = p.recvline()
	table = p.recvline()
	table = table[9:]
	dictionary = literal_eval(table)
	value = list(dictionary.keys())
	while len(text) != 0:
		for i in range(1,5):
			tmp = text[:i]
			tmp2 = ''.join(i for i in tmp)
			for j in range(5):
				if tmp2 == dictionary[value[j]]:
					payload += value[j]
					del text[:i]
			print payload
	p.sendline(payload)
p.interactive()