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
ahmed nasser :
20120913 20:47:42
wa and don't now why


kamalesh:
20120831 12:46:46
after 5 WA i got AC!!! 

code warrior:
20120811 10:36:45
input


abc:
20120803 18:00:27
anyone can tell no. of lines between two consecutive inputs ? 

Bijoy Prakash:
20120801 16:01:48
the problem statement is a bit confusing.


David Feuer:
20120718 22:45:50
Why do you exclude some languages? 

Abhishek Kumar:
20120715 16:03:29
take the character array size greater than 3.it cost me sigsev 

Shubham:
20120703 16:42:32
"and all of them wants his amount of pizza in one slice."


_!_pelpendiculal........:
20120521 08:00:34
Last edit: 20120720 17:23:23 

Anirudh Goyal:
20120517 15:20:08
ANybody give some more test cases !!! 
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 