using System;

​

public class Solution{

    public static void Main(String[] args){

        Calculator myCalculator=new  Calculator();

        int T=Int32.Parse(Console.ReadLine());

        while(T-->0){

            string[] num = Console.ReadLine().Split();

            int n = int.Parse(num[0]);

            int p = int.Parse(num[1]); 

            try{

                int ans=myCalculator.power(n,p);

                Console.WriteLine(ans);

            }

            catch(Exception e){

               Console.WriteLine(e.Message);

​

            }

        }  

    }

}

​

class Calculator

{

    public int power(int x, int y)

    {

        if(x < 0 || y < 0)

        {

            throw(new Exception("n and p should be non-negative")); 

        }else

        {

            return (int)Math.Pow(x,y);  

        }   

    }

}