2018 South Central USA Regional Contest

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2018-11-10 18:15 UTC

2018 South Central USA Regional Contest

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2018-11-10 23:15 UTC
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Problem G
Last Factorial Digit

/problems/lastfactorialdigit/file/statement/en/img-0001.jpg
Factorials on the complex plane, by Dmitrii Kouznetsov

The factorial of $N$, written as $N!$, is defined as the product of all the integers from $1$ to $N$. For example, $3! = 1 \times 2 \times 3 = 6$.

This number can be very large, so instead of computing the entire product, just compute the last digit of $N!$ (when $N!$ is written in base $10$).

Input

The first line of input contains a positive integer $1 \leq T \leq 10$, the number of test cases. Each of the next $T$ lines contains a single positive integer $N$. $N$ is at most $10$.

Output

For each value of $N$, print the last digit of $N!$.

Sample Input 1 Sample Output 1
3
1
2
3
1
2
6
Sample Input 2 Sample Output 2
2
5
2
0
2