C31232233133313221211113313331333133313331212111133133313221232321   >>    C3123223313331322121111331333133313331333121211113313331322123232   <<    C31232233133313221211113313331333133313331212111133133313221232323   >>      C31232233133313221211113313331333133313331212111133133313221232322   >>