class Calculator {
int power(int n, int p) throws Exception {
 int sum = 1;
 if(n >= 0 && p >= 0) {
    for(int i = 0; i < p; i++)
        sum *= n;
} else {
     throw new Exception("n and p should be non-negative");
}
return sum;
}
}

import java.io.*;
import java.util.*;

class Calculator{
    public int power(int n, int p) throws Exception{        
        if(n < 0 || p < 0){
            throw new Exception("n and p should be non-negative");
        }else{
           return (int)Math.pow(n,p);
        }
    }
}

public class Solution {


	public static void main(String[] args) {

			Scanner scan = new Scanner(System.in);
			Calculator calculate = new Calculator();

			int testCases = Integer.parseInt(scan.nextLine().trim());

			while(testCases > 0){

					String[] inputArray = scan.nextLine().trim().split(" ");

					int n = Integer.parseInt(inputArray[0]);
					int p = Integer.parseInt(inputArray[1]);

					try{
							int result = calculate.power(n, p);
							System.out.println(result);
					}catch(Exception ex){
							System.out.println(ex.getMessage());
					}          
					testCases--;
			}
	} 
}

class Calculator():
    def power(self, n, p):
        if n<0 or p<0:
            raise Exception("n and p should be non-negative")            
        return n**p

class Calculator:
    def power(self, n, p):
        return n ** p if n >= 0 and p >= 0 else \
            'n and p should be non-negative'