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**Input File:** `cutein.txt`

**Output File:** `cuteout.txt`

**Time Limit:** 1 second

For you, numbers have personalities. The number 4 is elegant, 18 is strong and 42 is enigmatic. And, of course, any number ending in 0 is cute.

The more zeroes at the end of a number, the cuter that number is. Therefore 70, 36640 and 1800090 are only a little bit cute (ending in just one zero), whereas 400 and 99200 are very cute (ending in two zeroes) and 30000 is really really cute (ending in four zeroes).

Your task is to read in a number *N* and determine how many zeroes are at
the end of that number, so you can tell just how cute the number is.

The first line of input will consist of the single integer *d*,
telling you how many digits are in the number *N*. You are guaranteed
that
1 <= *d* <= 100,000.

Following this will be *d* additional lines, each containing a single
digit (0, 1, 2, 3, 4, 5, 6, 7, 8 or 9). These will be the digits of
*N*, written from left to right. You are guaranteed that the first
digit of *N* will not be zero.

You must write a single integer as output, representing the number of
zeroes at the end of *N*.

5 9 9 2 0 0

2

7 1 8 0 0 0 9 0

1

The first example describes *N* = 99200,
which ends in two zeroes.
The second example describes *N* = 1800090,
which contains many zeroes within but has only one zero at the end.

The score for each input file will be 100% if the correct answer is written to the output file and 0% otherwise.

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