Solution.js

process.stdin.resume();
process.stdin.setEncoding('ascii');

var input_stdin = "";
var input_stdin_array = "";
var input_currentline = 0;

process.stdin.on('data', function (data) {
    input_stdin += data;
});

process.stdin.on('end', function () {
    input_stdin_array = input_stdin.split("\n");
    main();
});

function readLine() {
    return input_stdin_array[input_currentline++];
}

//Write your code here
class Calculator {
    constructor() {
        this.power = function (n, p) {
            if (n < 0 || p < 0) {
                return ('n and p should be non-negative')
            } else {
                return n ** p
            }
        }
    }
}

function main() {
    var myCalculator = new Calculator();
    var T = parseInt(readLine());
    while (T-- > 0) {
        var num = (readLine().split(" "));
        try {
            var n = parseInt(num[0]);
            var p = parseInt(num[1]);
            var ans = myCalculator.power(n, p);
            console.log(ans);
        } catch (e) {
            console.log(e);
        }

    }
}