9 Moves cursor to the next horizontal tab stop
  LF (Line Feed) 10 Moves cursor to the next line
  VT (Vertical Tab) 11 Moves cursor to the next vertical tab stop
  FF (Form Feed) 12 Moves cursor to the start of the next page
  CR (Carriage
  Return)

                              13 Moves cursor to the beginning of the current line
  SO (Shift Out) 14 Shifts out for communications networking, screen formatting, and alter-
                                        nate graphics
  SI (Shift In) 15 Shifts in for communications networking, screen formatting, and alternate
                                        graphics
  ESC (Escape) 27 Marks the beginning of an escape sequence
  SP (Space) 32 Inserts one blank space in program output
  DEL (Delete) 127 Deletes the last character entered
  PI None Represents the number PI with the precision of the default floating-point
                                        data type