C31232233133313221211113313331333133313113311331333133322322321   >>    C3123223313331322121111331333133313331311331133133313332232232   <<    C31232233133313221211113313331333133313113311331333133322322323   >>      C31232233133313221211113313331333133313113311331333133322322322   >>