/in/Main.java:2: error: class y is public, should be declared in a file named y.java
public class y {
       ^
/in/Main.java:5: error: cannot find symbol
    Scanner sc = new Scanner(System.in );
    ^
  symbol:   class Scanner
  location: class y
/in/Main.java:5: error: cannot find symbol
    Scanner sc = new Scanner(System.in );
                     ^
  symbol:   class Scanner
  location: class y
3 errors