10 POKE53280,0:POKE53281,0:PRINT"[147]"
20 N=1:P=54272:V=1984:FORZ=1TO12:GOSUB50:V=V-39:N=N+1:NEXT:V=V+42:N=N-1
30 FORZ=1TO12:GOSUB50:V=V+42:N=N-1:NEXT
40 END
50 Q=15ANDRND(0):IFQ=0THEN50
60 FORX=1TON:POKEV+1,67:POKEV+1+P,Q:V=V+1:NEXT:POKEV,75:POKEV+P,Q
70 FORX=1TON:POKEV-40,66:POKEV-40+P,Q:V=V-40:NEXT:POKEV,73:POKEV+P,Q
80 FORX=1TON:POKEV-1,67:POKEV-1+P,Q:V=V-1:NEXT:POKEV,85:POKEV+P,Q
90 FORX=1TON:POKEV+40,66:POKEV+40+P,Q:V=V+40:NEXT:POKEV,74:POKEV+P,Q:RETURN