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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sonu:
20150328 07:32:00
Easy problem ..


Jerry Goyal:
20150308 22:08:45
I remembered 0 :) 

Aryan Raj :
20150305 10:45:19
remember 0 . cost me 4 wrong answer ... :P


Ryszard:
20150226 20:10:32
Please if anyone can help! My program works for the test cases and any further figures I've tried. I have checked formatting of "No Number". I have the (0,0) case and n<10000 sorted. Still getting WA. Are there any other snags I might have run into, please?? Written in Java with println for outputs and a scanner for inputs. New to this site but was ok with previous tutorial challenges. Last edit: 20150226 20:11:43 

Bozidar:
20150220 12:34:46
Instead of "No Number", i printed "No number.", and that costed me WA... Rly.... Last edit: 20150220 12:35:02 

Murat TOPAK:
20150204 16:03:46
if/ else if/ else... nothing more. 

ANUJ RATHORE:
20150122 20:58:48
silly mistake cost me a wrong answer :p


Ketan Sethi:
20150111 13:46:06
Hi,


Raj Kumar Chauhan:
20150110 01:55:03
wth man why i am getting wrong answer everytime?


ssk:
20140930 07:57:13
check out the space between No and Number...

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 