************************************************************
1. Python
---------------------- argv at line 1 ----------------------
A
--------------------- stdin at line 5 ----------------------
1
-------------------- output from line 7 --------------------
1 A


************************************************************
2. Python
---------------------- argv at line 3 ----------------------
B
--------------------- stdin at line 5 ----------------------
1
-------------------- output from line 7 --------------------
1 B


************************************************************
3. Python
---------------------- argv at line 1 ----------------------
A
------------------- output from line 14 --------------------
9


************************************************************
4. Python
---------------------- argv at line 3 ----------------------
B
------------------- output from line 14 --------------------
9


************************************************************
5. Python 2
------------------- output from line 14 --------------------
9


************************************************************