Trailing Zeros
Problem
Given a number find the number of trailing zeroes in its factorial.
Input Format
A single integer - N
Output Format
Print a single integer which is the number of trailing zeroes.
Input Constraints
1 <= N <= 1000
Problem Setter: Practo Tech Team
Time Limit: 1
Memory Limit: 256
Source Limit:
Explanation
10! = 3628800 has 2 zeros in the end.
