Initial input and output samples are imported
Initial makefile is added
Initial main source added
Hide unnecessary commands.
Fix test3 procedure
Basic Main source is committed.
Add some helper messages to test routines.
A bug for missed spell is fixed.
Add problem 1
Add base makefile
Add test features
Close input stream when error is occured
Base source that is implemented without 'pack' func.
Perform refactoring to box related classes