Internetwache CTF 2016: Misc 50 - The hidden message

Description

My friend really can't remember passwords. So he uses some kind of obfuscation. Can you restore the plaintext?

Write-up

8진수 인 것 같아서 다음과 같은 code를 작성하고 실행했다.

s = ''

for i in range(4):
  dat = raw_input()
  dat = dat.split()

  for ch in dat:
    s += chr(int('0' + ch, 8)) 

print s

Flag

IW{N0_0ne_can_st0p_y0u}