Last Factorial Digit

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 $10$).

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 $10$.

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 |