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
Junaid:
20151227 12:53:05
Nice problem......AC in one go.....all testcases given in comments helped a lot....Thanks for those...


Shubham Gupta:
20151224 22:51:50
I had multiple wa(s) just because i was reading i/p using strings. Changed it to scanf(" %d / %d ",&a,&b) and got ac.


codelover25:
20151219 16:46:11
Can any one explain why having 4 friends who want 1/4th pizza each lead to an answer of 3? Shouldn't the answer be 2? I am testing it with spoj toolkit. 

alexbandeira:
20150926 02:36:03
FINEEEEEEEEEEEEEE!! :D


Parul Yadav:
20150820 12:04:12
my 150th 

Rajat Varshney:
20150819 22:40:00
Good Problem to learn.... 

Kriti Singhal:
20150805 06:46:57
i am getting correct answers for all the test cases...still showing wrong answer... :(


snehil10111995:
20150801 05:35:55
My code does satisfy all the test cases given in the problem and comments, but still my code isn't accepted here. Frustrated! 

a1s1_7:
20150715 07:51:02
Can someone please tell whats going wrong in my code.


tjain1999:
20150713 03:01:39
WA at 6th case Can you tell me what is the 6th case ? So i can find my mistake

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 