REM VAL parses decimal strings:
      PRINT VAL("0")
      PRINT VAL("123456789")
      PRINT VAL("-987654321")

      REM EVAL can be used to parse binary and hexadecimal strings:
      PRINT EVAL("%10101010")
      PRINT EVAL("%1111111111")
      PRINT EVAL("&ABCD")
      PRINT EVAL("&FFFFFFFF")