Solution.java

// github.com/RodneyShag

import java.util.*;
import java.util.Scanner;

class MyCalculator {
    long power(int n, int p) throws Exception {
        if (n < 0 || p < 0) {
            throw new Exception("n or p should not be negative.");
        } else if (n == 0 && p == 0) {
            throw new Exception("n and p should not be zero.");
        } else {
            return (long) Math.pow(n, p);
        }
    }
}

class Solution {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in .hasNextInt()) {
            int n = in .nextInt();
            int p = in .nextInt();
            MyCalculator my_calculator = new MyCalculator();
            try {
                System.out.println(my_calculator.power(n, p));
            } catch (Exception e) {
                System.out.println(e);
            }
        }
    }
}