R1

R2

R3

R4

R5

R6

R7

R8

R9

R1

1

0

0

0

0

1

1

0

0

R2

0

1

0

1

0

0

1

0

1

R3

0

0

1

1

0

1

0

1

0

R4

0

1

0

1

0

0

1

0

1

R5

1

0

1

1

1

1

1

0

0

R6

0

1

0

0

0

1

1

0

0

R7

0

0

1

0

0

0

1

0

1

R8

1

0

0

1

0

1

1

1

0

R9

0

1

0

0

1

0

0

0

1