(-1-2) (+1+2) (-1'-2') (-1-2) (-1-2) (+1+2) (-1-2)

(-1-2) (+1+2) (-1'-2') (-1-2) (-1-2) (+1+2) (-1-2)

(-1-2) (+1+2) (-1'-2')

-4 +5 -4 -5 -4 +5 -4 -5 -4 +5 +6

+5 +6 -5 -4 -3 +4 -4 -3' -2 +2 -1

-2' -1 +2 -1 (-1-2) (-1-2) (+1+2) (-1-2)

(-1-2) (+1+2) (-1'-2') -4 -3 +4 -4 -3' -2 +2 -1

(-1-2) (-1-2) (+1+2) (-1-2)

(-1-2) (+1+2) (-1'-2') -4 -3 +4 -4 -3' -2 +2 -1

-4 -3 +4 -4 -3' -2 +2 -1

-4 -3 +4 -4 -3' -2 +2 -1

(-1-2) (-1-2) (+1+2) (-1-2)