@0 @1 ADD ANY SUB 1 F:MOV LAST ANY SUB 1 JGZ F @2 @3 @4 @5 MOV UP ACC MOV ACC ANY MOV ACC ANY @6 @7 @8 @9 MOV UP RIGHT @10 MOV 0 DOWN MOV ACC DOWN SUB 899 N: MOV LEFT DOWN ADD 30 JLZ N MOV -999 DOWN @11