tree de8efa0f25bfb58eb6f157a78b001507acb10fdc
parent 6c003ce9418bdfe7c0ec5641f0c729f8c6509225
author Kei Sawada <k@swd.cc> 1531582714 +0900
committer rodric rabbah <rodric@gmail.com> 1532358755 -0400

 Add more boundary checking to pass new test cases