C1a-C1a:C1z+*-*+C2c:*-*
C1x-C1b:C1y+*-*+O2b:C1z-C2b
C1x-C2b:*-*:C1x+C2y-C1b+C2c
C1y-C2b:C1x-*:C1x+C2c-C1b+C2c
C1y-C2c:*-*:C1a+C1x+C1z-C1a+C1b+C2b
C1z-C2b:C1a+C2y-*+*:C1x+C1y-C1b+C2c
C2a-C1a:*-*:C2c-C2c
C2x-C1b:*-*:C1x+C2y-C1b+C2c
C2y-C2c:C1z+*-*+C1a:C1x+C2x-C2b+C1b