#!/usr/bin/python3

import os
import subprocess
import re

p = subprocess.Popen(['gpio', 'i2cdetect'],stdout=subprocess.PIPE,)
#cmdout = str(p.communicate())

lines = list()
p.stdout.readline()
for i in range(1,9):
  line = str(p.stdout.readline()).split(' ')[1:]
  for mcp in line:
    if re.search('\d\d', mcp):
        lines.append(mcp)

print(lines)