C31232233133313221211113313331333132313232233133313223313223111   >>    C3123223313331322121111331333133313231323223313331322331322311   <<    C31232233133313221211113313331333132313232233133313223313223113   >>      C31232233133313221211113313331333132313232233133313223313223112   >>