// https://www.hackerrank.com/challenges/java-exception-handling/problem

import java.util.Scanner;

public class JavaExceptionHandling {

public static final MyCalculator MY_CALCULATOR = new MyCalculator();

public static final Scanner SCANNER = new Scanner(System.in);

public static void main(String[] args) {

while (SCANNER.hasNextInt()) {

int n = SCANNER.nextInt();

int p = SCANNER.nextInt();

try {

System.out.println(MY_CALCULATOR.power(n, p));

} catch (Exception e) {

System.out.println(e);

}

}

}

private static class MyCalculator {

public long power(int base, int power) throws Exception {

if (base == 0 && power == 0) {

throw new Exception("n and p should not be zero.");

} else if (base < 0 || power < 0) {

throw new Exception("n and p should not be negative.");

}

long result = 1;

for (int i = 0 ; i < power ; i++) {

result *= base;

}

return result;

}

}

}