import java.util.Scanner;

public class Calculator {
    public static void main(String[] args) {
        System.out.println("Старт программы");
        String numberOne = enterNum();
        String numberTwo = enterNum();
        System.out.println("Принял: " + numberOne);
        System.out.println("Принял: " + numberTwo);
        int firstNum = stringToInteger(numberOne);
        int secondNum = stringToInteger(numberTwo);
        int thirdNum = calcDifference(firstNum, secondNum);
        System.out.println("Результат:" + thirdNum);
        System.out.println("конец программы");
    }

    public static String enterNum() {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Введите число:");
        return scanner.nextLine();
    }

    public static int stringToInteger(String stringData) {
        return Integer.parseInt(stringData);
    }


    public static int calcDifference(int firstNumber, int secondNumber) {
        System.out.println("начинаю считать");
        return firstNumber - secondNumber;
    }
}