program lab22;

begin
  readln(s);
  q := 0;

  for i := 1 to length(s) do
  begin
    if s[i] = '(' then
      q := q + 1;
    if s[i] = ')' then
    begin
      if q = 0 then
      begin
        writeln('Incorrect');
        readln;
        halt;
      end else q := q - 1;
    end;
  end;

  if q = 0 then writeln('Correct')
  else writeln('Incorrect');
  readln;

end.