View Code of Problem 1

import java.util.Scanner;

public class Test{
    public static void main(String[] args) {
        Scanner S1 = new Scanner(System.in);
        Scanner S2 = new Scanner(System.in);
        int A = S1.nextInt();
        int B = S2.nextInt();
        System.out.println(A + B);
    }
}
/*
Main.java:3: error: class Test is public, should be declared in a file named Test.java
public class Test{
       ^
1 error
*/