Editorial for GFSSOC '14 Winter J2 - Wow much parking lot
                Remember to use this editorial only when stuck, and not to copy-paste code from it. Please be respectful to the problem author and editorialist.
Submitting an official solution before solving the problem yourself is a bannable offence.
        Submitting an official solution before solving the problem yourself is a bannable offence.
Keep track of  and 
 coordinates after each order.
- North adds 
to the
value.
 - South subtracts 
from the
value.
 - East adds 
to the
value.
 - West subtracts 
from the
value.
 
Skills needed: Implementation
Time complexity: 
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