/in/Main.java:1: error: class, interface, or enum expected
public static main(String[] args) {
              ^
/in/Main.java:3: error: class, interface, or enum expected
  System.out.print("???a???: ");
  ^
/in/Main.java:4: error: class, interface, or enum expected
  int a = scanner.nextInt();
  ^
/in/Main.java:5: error: class, interface, or enum expected
  System.out.println();
  ^
/in/Main.java:6: error: class, interface, or enum expected
  System.out.print("???b???: ");
  ^
/in/Main.java:7: error: class, interface, or enum expected
  int b = scanner.nextInt();
  ^
/in/Main.java:9: error: class, interface, or enum expected
  System.out.println();
  ^
/in/Main.java:10: error: class, interface, or enum expected
  System.out.println("a?b???: " + (a + b));
  ^
/in/Main.java:11: error: class, interface, or enum expected
}
^
9 errors