       10 // END sample program
       20 //
       30 SELECT OUTPUT "temp"
       40 PRINT "con"
       50 PRINT "; ""If error 40 has occurred, all is ok"
       60 PRINT "DEL ""temp"
       70 SELECT OUTPUT ""
       80 SYS sysin, "temp"
       90 END
      100 PRINT "See, no continuation possible"
      110 SYS assert, FALSE
