raspberry solve

raspberry.py

#!/usr/bin/python

import hashlib
import sys

def printFlag():
	print("Flag is XXX")

def rshift(val, n):
	m = 1 << 128

	if ((val & m) == 0):
		return val >> n
	else:
		for i in range(0, n):
			val = (val >> 1) | m
		return val

def check_passcode(passcode, val):
	m = hashlib.md5()
	m.update(passcode)
	passcode = rshift(int(m.hexdigest(), 16), 112) << 112
	
	a = rshift((1 << 128), 16)
	# print('[*] a :', a)
	# print('[*] val :', 0xefb6157e75017dc7134a16ff507fcf34)
	# print('[*] a & val :', hex(a & val))
	# print('[*] passcode :', hex(passcode))
	if(passcode == (a & val)):
		printFlag()
	else:
		print("Wrong!")
		exit(0)

# passcode = raw_input("Enter passcode >> ")
passcode = sys.argv[1]

if(passcode.isdigit()):
	check_passcode(passcode, 0xefb6157e75017dc7134a16ff507fcf34)
	
else:
	print("You can only enter numbers!")
	exit(0)

solve.py

import subprocess

# 18994
i = 0
while True:
    output = subprocess.check_output(["C:\\Python27\\python.exe", "./raspberry.py", str(i)])
    if "Wrong!" not in output:
        print(i)
        exit()
    i += 1

'''
Enter passcode >>
18994
Flag is It_Is_alw@Ys_tIm3_t0_d0_go0d
'''