NSTEPS - Number Steps

Starting from point (0,0) on a plane, we have written all non-negative 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.

 

Illustration

 

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

Added by:Camilo Andrés Varela León
Date:2006-11-25
Time limit:1.159s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ERL JS-RHINO NODEJS PERL6 VB.NET
Resource:Asia - Tehran 2000

hide comments
2015-06-14 02:50:39 candide
Seems there is an empty line at the end of the input file.

Last edit: 2015-06-14 02:51:40
2015-05-24 12:21:56
dont forget to put "\n" after no mumber too... my mistake!!
2015-05-11 15:57:01 Aman Kumar
i am getting the solution right in both my ide as well as ideone, but spoj compiler is giving me segmentation fault, please check what is wrong in my code
<snip>

Last edit: 2022-08-30 19:47:13
2015-05-08 12:36:25 nap11
whats wrong with this code...plz help me
<snip>

Last edit: 2022-08-30 19:47:18
2015-05-04 18:32:10 Utkarsh
Be careful with "No Number". Costed me WA.
Nice basic problem to get acquainted with string streams ! :)
2015-04-12 02:31:38 Lusho
why ??
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at NumberSteps.<clinit>(Main.java:3)
2015-04-01 11:47:48 hareesh
ppl having error
the input size is 100000
2015-03-28 07:32:00 sonu
Easy problem ..
just don't forget to add the constraint for input range (i.e from 0 to 10000).
2015-03-08 22:08:45 Jerry Goyal
I remembered 0 :)
2015-03-05 10:45:19 Aryan Raj
remember 0 . cost me 4 wrong answer ... :P
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