01. Integer Operations

package Test;

import java.util.Scanner;

public class IntegerOperations_01 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int firstNumber = Integer.parseInt(scanner.nextLine());
        int secondNumber = Integer.parseInt(scanner.nextLine());
        int thirdNumber = Integer.parseInt(scanner.nextLine());
        int forthNumber = Integer.parseInt(scanner.nextLine());

        //((first + second) / third) * forth
        int result = ((firstNumber + secondNumber) / thirdNumber) * forthNumber;
        System.out.println(result);
    }
}