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
Anvesh Kumar Arrabochu:
20141222 19:59:17
Just in case you're going wrong in the 9th test case, test for


Arnab Mitra:
20141222 17:54:13
getting WA after 9th case. Any suggestions? 

Aravinth:
20141217 21:40:12
AnyBody give some more test cases 

Akshat Mathur:
20141216 04:57:17
Finally AC....after 8 WAs !! Last edit: 20141216 04:57:51 

Lehar:
20141215 19:22:36
AC in first go! :D


jaspreet kaur:
20141210 18:34:51
finally accepted after 2 WA.nice prob..


jaspreet kaur:
20141210 18:04:53
failing on 5th test case..somebody plz help.. 

alpha coder:
20141206 01:30:15
ac in one go !! just try to build complete pizzas first ,using parts available ! :D 

Mayank Ladia:
20141120 16:45:57
isnt't 1st output wrong 

Tim Wargon:
20141031 11:08:12
I was getting wrong answers in the 9th case... Reason  was using strings to get input... use scanf("%d/%d") to get the input. Absolute time waster... :( Last edit: 20141031 11:08:35 
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 