C31232233133313221211113313331333133313331212111133133313232322321   >>    C3123223313331322121111331333133313331333121211113313331323232232   <<    C31232233133313221211113313331333133313331212111133133313232322323   >>      C31232233133313221211113313331333133313331212111133133313232322322   >>