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

Added by:c[R]@zY f[R]0G
Date:2013-02-14
Time limit:1s
Source limit:5000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ASM64

hide comments
2016-07-29 19:06:45
nD here 100th completed with such a nice ques !!! modified sieve + precomputation . :)
2016-07-15 08:46:20
150th !!
2016-06-16 19:52:29
My code is working fine on codeblocks but gives SIGSEGV error, here on spoj. HELP!!
2016-05-30 13:01:42
Precompute using Prime Sieve and O(1) retrieval B| TLE->TLE->WA->AC
2016-05-21 22:26:34
why is it showing run time error???
2016-05-16 19:08:09
got accepted using sieve and noting down the first prime divisor for each number inside sieve function...nice question though :D

Last edit: 2016-05-16 19:08:26
2016-04-16 19:54:19 Ray Brish Bhanu
learned diff b/w declaring an array locally and globally
2016-03-16 21:28:27
good problem to learn application of sieve.Precomputation is necessary i think
2016-02-12 19:56:13
worked even with long long int!!
AC in one go =D =D
2016-02-02 17:06:32
easy one! my half century complete..................!!!!!!


Last edit: 2016-02-02 17:08:05
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