LDNOT 0.00

OUT TR0

AND 0.01

DIFU(013) 20.00

LD TR0

AND 0.02

DIFU(013) 20.04

LD 20.00

OUT TR0

ANDNOT 10.01

ANDNOT 10.02

ANDNOT 10.03

DIFU(013) 20.01

LD TR0

AND 10.01

ANDNOT 10.02

ANDNOT 10.03

DIFU(013) 20.02

LD TR0

AND 10.01

AND 10.02

ANDNOT 10.03

DIFU(013) 20.03

LD 20.01

LD 20.04

AND 10.01

ANDNOT 10.02

ANDNOT 10.03

OR 0.00

KEEP(011) 10.01

LD 20.02

LD 20.04

AND 10.01

AND 10.02

ANDNOT 10.03

OR 0.00

KEEP(011) 10.02

LD 20.03

LD 20.04

AND 10.01

AND 10.02

AND 10.03

OR 0.00

KEEP(011) 10.03

END(001)

經測試，完全滿足你的要求，且程式易於理解。