SAMER08F  Feynman
Richard Phillips Feynman was a well known American physicist and a recipient of the Nobel Prize in Physics. He worked in theoretical physics and also pioneered the field of quantum computing. He visited South America for ten months, giving lectures and enjoying life in the tropics. He is also known for his books "Surely You're Joking, Mr. Feynman!" and "What Do You Care What Other People Think?", which include some of his adventures below the equator.
His lifelong addiction was solving and making puzzles, locks, and cyphers. Recently, an old farmer in South America, who was a host to the young physicist in 1949, found some papers and notes that is believed to have belonged to Feynman. Among notes about mesons and electromagnetism, there was a napkin where he wrote a simple puzzle: "how many different squares are there in a grid of N ×N squares?".
In the same napkin there was a drawing which is reproduced below, showing that, for N=2, the answer is 5.
Input
The input contains several test cases. Each test case is composed of a single line, containing only one integer N, representing the number of squares in each side of the grid (1 ≤ N ≤ 100).
The end of input is indicated by a line containing only one zero.
Output
For each test case in the input, your program must print a single line, containing the number of different squares for the corresponding input.
Example
Input: 2 1 8 0 Output: 5 1 204
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priyansh31:
20190829 19:02:50
Good question :) Last edit: 20190904 05:37:48 

shreyans012:
20190825 04:51:26
Lovely question. Shows we have to read the problem correctly. 

shreyas_s:
20190716 08:37:05
There is no need of recursion. 

abhimanyu_1998:
20190712 22:56:55
easy ac in one go


ashishdw:
20190629 08:06:10
MY FIRST AC!!!!!!!!!!!


akasaransh:
20190626 09:51:11
"AC in one go!!" 

bl4ckp4nther:
20190611 18:34:07
I always envied those "AC in one go!" comments, sort of irritated. But now I can understand :P 

shivamgoyal694:
20190608 15:11:03
AC in one go!! 

garima gupta:
20190325 16:34:29
AC in one go!! 

msnitish:
20190325 16:13:46
How do we take inputs continously ? Should I use while (cin >> x && x!=0) ?

Added by:  Diego Satoba 
Date:  20081123 
Time limit:  1s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  ASM64 C C++ 4.3.2 CPP FORTRAN JAVA PASGPC PASFPC 
Resource:  South American Regional Contests 2008 