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
albertg: 2011-04-19 05:27:08

What is the maximal value for n???

__Pra: 2011-03-03 13:45:42

getting runtime error (SIGSEGV) any help???? please...

sayed khalaf sayed: 2011-02-04 17:54:09

why "wrong answer" and i have the same output?? any one can help me??

Last edit: 2011-02-04 23:11:14
Husnun Nashir: 2010-11-20 19:38:24

just see the pattern number..then u will get a short-time solution around 0.01-0.03

Last edit: 2010-11-20 19:40:47
M. Hilmil Muchtar A. P.: 2010-11-20 03:30:35

tsabbit : aq ae WA kq..........

Tsabbit Aqdami: 2010-11-13 15:55:06

ada sesuatu yang kurang meski semua test case masukan bernilai benar..hmmm

Ankit Sablok: 2010-10-12 20:45:28

when i modified the code then it gives SIGSEV wts wrong wid the judge and wt are the number of test cases

Ankit Sablok: 2010-10-12 19:41:26

I am getting the error of SIGKILL bt the progrm runs fine on my desk why am i getting such an error on the judge

dimlight: 2010-09-25 10:39:59

why my answer is wrong my answer id 4081824

[deleted]: 2010-09-18 12:52:37

test case range???


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