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
Anirudh Goyal:
20120517 15:04:04
ANybody give some more test cases !!! 

Anirudh Goyal:
20120517 06:28:35
provide some more test cases plz....


strings:
20120318 19:05:52
has it got some tricky sort of test cases??? i am getting wa, but got right ans for tests i made...


saket diwakar:
20120316 19:31:04
ufffff..a silly mistake costs me 11 WA's....what the hell....... 

Yashodhan S. Katte:
20120304 07:15:40
all of them wants their(not his) amount of pizza in one slice. 

Garima Sachan:
20120221 20:00:46
Abotrika eats one complete pizza


Pluston:
20120221 14:35:53
Can any one explain why output is 4 in first case?


Thomas Lehmann:
20120215 19:20:39
The second example I can understand:


saket diwakar:
20120106 05:56:49
getting again and again wrong answer..can anyone please give me any case that i m missing????? 

Prakhar Jain:
20111201 12:47:36
print just a new line after your answer... 
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 