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Task :: Factorial Fun
n! = 1 × 2 × 3 × . . . × n. Given n, find the last non-zero digit of n!.

INPUT:
Each test case consists of a single line containing n, 1<=n<=1 000 000.


OUTPUT:
For each test case output a single line with the last non-zero digit of n!.


Sample Input:
5

Sample Output:
2


Sample Input:
10

Sample Output:
8



Sample Input:
12

Sample Output:
6


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Task info
Name:Factorial Fun
Time:0.25 sec.
Memory:16 MB
#Tests:10
AddedBy: kbaker
Source:Tomasz Czajka
Task Ratings
Difficulty:

3.2 (30 votes)
Quality:

3.7 (22 votes)
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