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

hide comments
Rajat (1307086): 2014-08-24 00:10:34

Easy problem.....
A silly mistake caused me a WA

surayans tiwari(http://bit.ly/1EPzcpv): 2014-08-22 00:36:39

nice one

swift_ninja: 2014-08-12 20:03:36

Last edit: 2014-08-12 20:41:27
wake up sid !!!!: 2014-07-22 21:42:36

even strings should be careful

Pranav Raj S: 2014-07-14 16:08:01

Check Formatting .. In Java println would do it . In C You have to add \n always :D

Utkarsh Agarwal: 2014-07-08 12:44:15

typed no number instead of No Number....WA....wtf

shashank kaushik: 2014-07-02 23:30:34

Check if u r not printing the No Number correctly.
My logic was correct just a silly printing mistake

Last edit: 2014-07-02 23:31:00
Psycho_bhatt: 2014-06-30 05:25:54

Got AC :)
Try these Test Cases
6 0
7 5
5 2

mohsin mohammad: 2014-06-29 16:23:38

After so much checking of edge conditions finally i got AC......my 15th

Nirvit Rustagi: 2014-06-22 19:28:22

getting right answer on ideone
but wa here


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