EXPRESSION

  The 'expression' statement is the simplest and most common type of
  statement. Its format is

       <expression>;

  where <expression> is any expression. Example are:

       result = 20;
       password = "Beef";
       pause(20);
       num = 20 * max(a, b);

  Do not forget the semicolon character at the end of the statement.
  If you do, the compiler will think that the next statement is part
  of the current one, and will report some unexpected error.