C31232233133313221211113313331333132313232233133313331311211332221   >>    C3123223313331322121111331333133313231323223313331333131121133222   <<    C31232233133313221211113313331333132313232233133313331311211332223   >>      C31232233133313221211113313331333132313232233133313331311211332222   >>