let split_on_char sep s =
  let r = ref [] in
  let j = ref (String.length s) in
  for i = String.length s - 1 downto 0 do
    if String.unsafe_get s i = sep then begin
      r := String.sub s (i + 1) (!j - i - 1) :: !r;
      j := i
    end
  done;
  String.sub s 0 !j :: !r;;

let () =
  let raw = split_on_char ' ' (read_line ())
            |> List.map int_of_string
            |> Array.of_list in
  if (raw.(0) + raw.(1)) = raw.(2) then
    begin print_string "Correct"; print_newline () end
  else begin print_string "Incorrect"; print_newline ()end;;