10 HOME: rem test program
20 PRINT "TEST PROGRAM"
30 GOSUB 100
40 END
100 INPUT "ENTER ";ABRACADABRA,B,C
110 PRINT A;B;C : : PRINT
120 RETURN
130 rem unreachable
140 if aa123 then 10
150 & ("ABRACADABRA",ABRACADABRA)