Leftmost Digit

Description

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

 

Input

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). 

 

Output

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

 

Sample Input

2 3 4

 

Sample Output

2 2

Hint

 In the first case, 3 * 3 * 3 = 27, so the leftmost digit is 2. In the second case, 4 * 4 * 4 * 4 = 256, so the leftmost digit is 2. 


问题：求最左边的数字是多少。
 对于数的操作，我们往往想到的是加减乘除，取倒数等，还有一种常用的变换，就是取对数。