BlueBook

Write a program that reads a real value ~X~ ~(-11 \le X \le 11)~ and a positive integer ~P~ ~(2 \le P \le 10)~ and then calculates and prints the value of ~X^P~.

Input Specification

The first line of input will be the number of test cases, ~N~ ~(0 \le N \le 5)~. Each of the ~N~ test cases will have 2 numbers on each line.

Output Specification

All answers should be to 2 decimal places.

Sample Input

3
2.0 4
4.0 2
3.0 3

Sample Output

16.00
16.00
27.00