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
nap11: 2015-05-08 12:36:25

whats wrong with this code...plz help me
http://ideone.com/4okaYl

Utkarsh: 2015-05-04 18:32:10

Be careful with "No Number". Costed me WA.
Nice basic problem to get acquainted with string streams ! :)

Lusho: 2015-04-12 02:31:38

why ??
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at NumberSteps.<clinit>(Main.java:3)

hareesh: 2015-04-01 11:47:48

ppl having error
the input size is 100000

sonu: 2015-03-28 07:32:00

Easy problem ..
just don't forget to add the constraint for input range (i.e from 0 to 10000).

Jerry Goyal: 2015-03-08 22:08:45

I remembered 0 :)

Aryan Raj : 2015-03-05 10:45:19

remember 0 . cost me 4 wrong answer ... :P

Ryszard: 2015-02-26 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: 2015-02-26 20:11:43
Bozidar: 2015-02-20 12:34:46

Instead of "No Number", i printed "No number.", and that costed me WA... Rly....

Last edit: 2015-02-20 12:35:02
Murat TOPAK: 2015-02-04 16:03:46

if/ else if/ else... nothing more.


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