@0 ## FEWEST INSTRS # 173/4/13 @1 MOV UP DOWN @2 @3 @4 MOV UP DOWN @5 @6 @7 @8 MOV UP RIGHT @9 A: MOV 0 DOWN MOV LEFT ACC JNZ A B: MOV LEFT ACC JMP 0 1: MOV 1 DOWN C: MOV LEFT ACC JEZ 1 0: MOV 0 DOWN JEZ C @10