APS  Amazing Prime Sequence
Bablu is very fond of Series and Sequences...
After studying Fibonacci Series in Class IX, he was impressed and he designed his own sequence as follows...
a[0] = a[1] = 0
For n > 1, a[n] = a[n  1] + f(n), where f(n) is smallest prime factor of n.
He is also very fond of programming and thus made a small program to find a[n], but since he is in Class IX, he is not very good at programming. So, he asks you for help. Your task is to find a[n] for the above sequence....
Input
Your code will be checked for multiple Test Cases.
First Line of Input contains T (<= 100), the number of Test Cases.
Next T lines contain a single number N. (1 < N < 10^7).
Output
Single line containing a[n] i.e. nth number of the sequence for each test case.
Example
Input: 3 2 3 4 Output: 2 5 7
hide comments
Shubham Jadhav:
20170512 07:48:02
Use long long. cost me 1 WA :) 

ANKIT JAIN:
20170509 20:44:39
Nice problem .. 

arijit pande:
20170406 20:51:56
Awesome optimisation problem. 

lonelybanboo:
20170330 08:04:34
And if you use 64 bit signed integers, remember to use "%lld" instead of "%d"...... 

stranger77:
20170208 04:44:14
My 50th On spoj 

karthik_vg:
20161231 17:06:13
Last edit: 20161231 17:08:52 

kira28:
20161223 21:56:38
AC in one go!!! XD XD


dwij28:
20160821 15:17:31
Answer for 10000000 is 3203714961609 which is greater than the limit of a 32 bit signed integer. You must use long long, cost me a WA. 

iharsh234:
20160731 11:07:56
when legends copy http://www.spoj.com/problems/APS2/


nonushikhar:
20160730 21:26:41
very easy;) 
Added by:  c[R]@zY f[R]0G 
Date:  20130214 
Time limit:  1s 
Source limit:  5000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ASM64 