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Pot.java

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package com.matsemann;

import java.io.FileInputStream;

import java.util.Scanner;

import static java.lang.Integer.parseInt;

public class Pot {

static Scanner sc;

public Pot(int nrs) {

int sum = 0;

while (nrs-- > 0) {

String line = sc.nextLine();

int number = parseInt(line.substring(0, line.length() - 1));

int pow = parseInt(line.substring(line.length() - 1));

sum += Math.pow(number, pow);

}

System.out.println(sum);

}

public static void main(String[] args) throws Exception {

//System.setIn(new FileInputStream("inputs/pot.txt"));

sc = new Scanner(System.in);

new Pot(parseInt(sc.nextLine()));

}

}