beecrowd | 3405
# Factorial

**Timelimit: 1**

By Andrês Rodrigues Oliveira, UNICAMP Brazil

Your problem is quite simple: given a number N, find the number of zeros to the right of your factorial in base 10.

The input contains several test cases. Each test case contains an integer N (0 ≤ N ≤ 10^{6}).

For each test case, the output contains number of zeros from the factorial of N in base 10.

Input Samples | Output Samples |

2 |
0 |

5 |
1 |

14 |
2 |