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
Vaporeon:
20150401 22:47:14
1/2 piece is not equal to (.25+.25) ;) 

Aditya:
20150329 11:31:53
What should be the o/p when i/p is 0?


Vedanuj:
20150305 17:24:46
AC in first attempt. :) 

LASER:
20150225 18:40:59
I keep getting the WA after the running(8)...


Daniel Carvalho:
20150225 16:57:29
Try this:


harshit sharma:
20150204 11:52:13
wa on 9th judge...


Petar Jesic:
20150203 12:35:55
This case helped me:


Asheesh Pathak:
20150116 13:19:40
Abotrika has a little too many friends it seems :D 

hrculiz:
20150108 08:01:05
AC :) Last edit: 20150111 14:27:30 

tyler_durden:
20150105 12:31:29
AC on 3rd go :) 
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 