Simple Change Machine

import java.util.Scanner;

public class change {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter the amount: ");
        int a = sc.nextInt();
        System.out.println("Enter a price of product");
        int b = sc.nextInt();
        int c = a - b;
        System.out.println("The rest: " + c );


    }

}