EGYPIZZA  Pizza
Abotrika is having a party because his team won the African cup so he is inviting his friends to eat some pizza. Unfortunately, his friends can't eat an entire pizza but all of them know exactly how much pizza they can eat and insist on getting the exact amount of pizza but Abotrika eats one complete pizza and all of them wants his amount of pizza in one slice. Their requests break down to three different pizza sliceseither one quarter or a half or three quarters of pizza.
Write a program that will help Abotrika to find out what is the minimal number of pizzas he has to order so that everyone gets exact amount of pizza they want.
Input
First line contains an integer N, 0 ≤ N ≤ 10 000, the number of friends. In each of next N lines there is amount of pizza that each of Abotrika's friends wants to eat,that is the fraction 1/4, 1/2 or 3/4.
Output
In the first and only line you should write the minimal number of pizzas Abotrika has to order don't forget to order one complete pizza for Abotrika.
Example 1
Input: 3 1/2 3/4 3/4 Output: 4
Example 2
Input: 5 1/2 3/4 1/2 1/4 1/4 Output: 4
hide comments
.:
20140725 10:42:55
if u are getting wrong answer..try the test cases given in the comments below....you may find your mistake..:D 

Shantanu Singh:
20140724 20:39:11
Celebrating Half Century with a Pizza ;) Last edit: 20140726 05:51:45 

anirudh:
20140719 12:12:56
WA in case 9 :(


jetpack:
20140705 16:54:25
woh green light ki khushi :)


Ashwini:
20140616 08:38:06
my 100th.......:) 

santhosh reddy:
20140610 19:12:27
Got AC :) check


Gaurav Chandak:
20140601 16:20:25
For 9th test case


..........:
20140527 19:49:43
Finally Accepted Thanks for all testcases in comments They helped A lot!! 

Medhini GN:
20140526 21:13:57
All of them want their amount of pizza in one slice*


pvkcse:
20140520 18:40:27
any tricky cases please...it's hard to pass 9...!!! 
Added by:  Kawmia Institutes 
Date:  20100818 
Time limit:  0.204s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ASM64 BF LISP sbcl LISP clisp JSRHINO LUA OBJC PHP VB.NET 
Resource:  Croatian Highschool Competitions in Informatics 2004 