week2 beomjun
Merge branch 'master' of github.com:lucidus21/august_python

* 'master' of github.com:lucidus21/august_python:
  q4 done
  q3 done
  interpolate done
  stock_history title deleted
  q3 revised. stock_history to palin text format
  q2 solved again. better solution
  q2 done, quiz updated
  q2 pushup_changed
  q1 solved
공포의 댓그 무서워
Merge branch 'master' of github.com:lucidus21/august_python

* 'master' of github.com:lucidus21/august_python:
  ?