JHAGIRLS  AAO KABHI HAWELI PE :P
JUNIOR_G'S closest friend JHA_G is very kind and helping person. He invites every girl to his HAWELI("AAO KABHI HAWELI PE"), so that he can help them :) . As he is also good in problem solving so to be his guest girls have to solve a problem to open the door.
Door contains a square grid of size n×n (3<n<31) and have n stones. Place those stones in such a way that no two stones should be alined with each other.
Two stones are called alined if:
i) they share common row or column.
ii) or they share common diagonal i.e. a straight line going through 'a' and 'b' is a diagonal for all smallest square between them.
"CODING IS FUN ENJOY IT" :)
Input
First line contain an integer T (0<T<10001). Each test case contain an integer n (3<n<31).
Output
For each test case output n lines containg row number and column number (1 based indexing and sorted according to row number (increasing order )).
Example:
Input:
1
5 Output:1 12 41 1
2 4
3 2
4 5
3 25 3
hide comments
sanyam19:
20180106 20:43:36
easy.... :)


sonuverma:
20180103 13:13:32
Easy one :) 

Tapasweni Pathak:
20170405 03:44:22
Last edit: 20170405 06:22:37 

Ankush :
20170323 12:41:46
Aa gaye Haweli pe :P Nqueens problem, lol 

deadbrain:
20170319 19:57:58
The test cases are weak... A wrong AC solution gave this output on n=4 :


abis:
20170315 13:40:02
print any solution


rajeev_899:
20170315 08:01:30
@ problem setter ...can we print any solution out of multiple solutions to the problem 

Praveen Gajulapalli:
20170313 14:21:07
The problem has multiple solutions. Print any one of them. 

useandthrowone:
20170311 13:46:48
how can i avoid TLE? 

[Rampage] Blue.Mary:
20170311 13:10:15
This is surely a tutorial problem, a much harder version already exists in SPOJ: http://www.spoj.com/problems/NQUEEN/ 
Added by:  junior_g 
Date:  20170311 
Time limit:  0.141s0.583s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All 