Rightmost Digit

Given a positive integer N, you should output the most right digit of N^N.

The input contains several test cases. The first line of the input is a single integer T which is the number of test cases. T test cases follow.
Each test case contains a single positive integer N(1<=N<=1,000,000,000).

For each test case, you should output the rightmost digit of N^N.

2
3
4

7
6

In the first case, 3 * 3 * 3 = 27, so the rightmost digit is 7.
In the second case, 4 * 4 * 4 * 4 = 256, so the rightmost digit is 6.

Ignatius.L