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
hide comments
bushra_04:
20210412 20:51:47
I AM AN IDIOT Last edit: 20210413 06:31:51 

sk128:
20210406 21:13:25
if (a=1) :(


its_frost:
20210316 07:33:28
whats wrong with this


r0l3xr3x:
20210304 11:28:08
My WAs are equal to number of ACs people got in comment sections:


sarkybastard:
20201124 22:26:22
@anurag_mishra. no you dont 

anurag_mishra:
20201124 15:15:46
you have take all inputs then print awnser otherwise WA


abhinav2011:
20200813 18:30:49
try to search for a pattern


taran9873:
20200810 08:09:45
i got the logic to find the solution but made one mistake i.e make sure given x,y lie on lines x=y or xy=2 

shiva_yanala:
20200602 08:20:48
sdfsd 

meher_24:
20200508 18:29:47
i am getting sigabrt error. please help 
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 