NSTEPS  Number Steps
Starting from point (0,0) on a plane, we have written all nonnegative integers 0, 1, 2,... as shown in the figure. For example, 1, 2, and 3 has been written at points (1,1), (2,0), and (3, 1) respectively and this pattern has continued.
You are to write a program that reads the coordinates of a point (x, y), and writes the number (if any) that has been written at that point. (x, y) coordinates in the input are in the range 0...10000.
Input
The first line of the input is N, the number of test cases for this problem. In each of the N following lines, there is x, and y representing the coordinates (x, y) of a point.
Output
For each point in the input, write the number written at that point or write No Number if there is none.
Example
Input: 3 4 2 6 6 3 4 Output: 6 12 No Number
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Sagar:
20140514 12:15:45
very easy beginner problem


à¤®à¥‹à¤¹à¤¨:
20140403 13:55:47
my code runs on ideone .but here it gives wrong answer.please tell what to do. 

Aadithya U:
20140325 13:13:02
got AC :) .. if you got wa, then you might have left some condition.. check out.. surely for begineers .. :) 

Kkr:
20140323 12:39:39
my code runs in both ideone and code blocks...bt here it gives wrong answer..plz tell what to do.. 

mockingjay:
20140318 08:55:08
got ac in my first go........... 

mockingjay:
20140318 08:55:03
got ac in my first go........... 

ezeuz the mind:
20140206 06:52:36
LOL... solve it...


ezeuz the mind:
20140206 06:40:57
Duh... Pretty sure mine is right. but got WA.


yvn:
20140111 17:55:24
help me out m gettng rite output but runtime error wats dat?? 

Prashant Kumar:
20131218 20:27:34
i get the logic, but getting wa , why? 
Added by:  Camilo Andrés Varela León 
Date:  20061125 
Time limit:  1.159s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ERL JSRHINO NODEJS PERL6 VB.NET 
Resource:  Asia  Tehran 2000 