10 PRINT"[147]"
11 POKE 1024+10+40*12,12            
12 POKE 1024+15+40*12,15               
13 POKE 1024+20+40*12,22
14 POKE 1024+25+40*12,5    
15 FOR L = 1 TO 100
20 X=INT(40*RND(1))+1
21 Y=INT(24*RND(1))+1
40 POKE 1024+X+40*Y,83
45 POKE 55296+X+40*Y,2
55 FORT=1TO200:NEXTT 
60 NEXT
70 PRINT"":END