Ciel and New Menu

Problem code: CIEL8STR

All submissions for this problem are available.

Chef Ciel likes 8. Ciel's restaurant has many menus whose prices are multiples of 8. Now, Ciel has some digits written on a wooden board, and she'd like to cut the board to display prices in a new menu. In how many ways can Ciel choose consecutive digits from the board which denote integer multiples of 8?

In this problem, an integer must not have leading zeros. For example, 0, 8, 48, 1000 are integer multiples of 8, but 00, 5, 58, 01000 are not.

Input

An input contains a string S, which denotes digits written on the wooden board.

Output

Print the number of ways in which Ciel can choose consecutive digits which denote integer multiples of 8.

Constraints

1 ? |S| ? 1000000 (106), where |S| means the length of S.
S doesn't contain non-digit charactors.

Sample Input

5858

Sample Output

2

Output details

Ciel can choose 5, 8, 5, 8, 58, 85, 58, 585, 858 and 5858. Here, only 8 and 8 are multiples of 8.

Author: laycurse
Date Added: 21-11-2011
Time Limit: 1 sec
Source Limit: 50000 Bytes
Languages: ADA, ASM, BASH, BF, C, C99 strict, CAML, CLOJ, CLPS, CPP 4.0.0-8, CPP 4.3.2, CS2, D, ERL, F#, FORT, GO, HASK, ICK, ICON, JAR, JAVA, JS, LISP clisp, LISP sbcl, LUA, NEM, NICE, PAS fpc, PAS gpc, PERL, PERL6, PHP, PIKE, PRLG, PYTH, PYTH 3.1.2, RUBY, SCALA, SCM guile, SCM qobi, ST, TCL, TEXT, WSPC


Comments

admin what will be the output

sagar55 @ 19 Dec 2011 04:21 PM
admin what will be the output for 8008??

7

atiprashant @ 19 Dec 2011 04:32 PM
7

What will be the output for

wizgen @ 20 Dec 2011 05:26 AM
What will be the output for 008 3 or 1?

http://pastebin.com/xapwXkLV

jainharshit @ 21 Dec 2011 04:28 PM
http://pastebin.com/xapwXkLV check out my code.. don't know why codechef says that this is wrong solution

ya i too find the same

arulmurugan @ 22 Dec 2011 09:47 PM
ya i too find the same problem... i checked my output with some of the accepted solution's output.am getting correct answer. but it says that "Wrong Answer"...Admin please check it out...

i can't understand why my

julius @ 23 Dec 2011 11:59 AM
i can't understand why my answer is wrong??????? please help.9808

I am getting wrong answer..

umangkedia @ 23 Dec 2011 01:47 PM
I am getting wrong answer.. Downloaded one code and checked with many inputs and all the answers I am getting is same.. Admin can you plz check

@arulmurugan Did you got the

umangkedia @ 24 Dec 2011 01:22 PM
@arulmurugan Did you got the correct answer??

ya am getting correct

arulmurugan @ 24 Dec 2011 02:43 PM
ya am getting correct answer...but my solution is not accepted stating that "Wrong Answer"

I have mailed codechef.. but

umangkedia @ 24 Dec 2011 05:09 PM
I have mailed codechef.. but didn't got any reply.. same here.. getting correct answers and codechef saying wrong answer. Help, am irritated

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