FACTCG2  Medium Factorization
The task in this problem is to write a number in a multiplication of prime numbers separated by “ x ”. You need to put the number 1 in this multiplication.
Input
The input consists of several lines.
Each line consists of one integer N (1 <= N <= 10^7) .
Output
For each line you need to output the factorization separated by “ x ” and including 1.
Sample
Input 1 2 4 8 Output 1 1 x 2 1 x 2 x 2 1 x 2 x 2 x 2
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nadstratosfer:
20180326 06:42:47
Some testfiles contain over 300,000 integers. I think this puts to bed any hopes of getting AC with Python here. 

jayanth_123:
20171230 19:43:14
@Phyllipe Medeiros


shayan97:
20171220 12:08:59
getting runtime error. can anyone suggest me a way?


bansal_14:
20171016 19:52:41
use " x " instead of using " x" 

singh_811:
20170921 18:56:11
@admin Need help because I am not able to submit the solution. 

saurav52:
20170702 23:38:15
use sieve... 

sandeep_4141:
20170609 12:27:34
very poor logic :)....use scanf && printf instead of cin && cout !! 

aditya_rev:
20170516 02:28:12
dont know why im getting wa, can someone tell me one case? 

anurag_tangri:
20170403 19:01:34
learnt a lot ! unlimited TLES and then AC!


Praveen Kulkarni:
20170319 04:36:58
I am getting runtime error (NZEC)....can any one please help how to deal with taking input in interpreted languages such as perl? When to stop taking input? 
Added by:  Phyllipe Medeiros 
Date:  20120226 
Time limit:  0.517s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ASM64 