C31232233133313221211113313331311331333133313331311331333131121322321   >>    C3123223313331322121111331333131133133313331333131133133313112132232   <<    C31232233133313221211113313331311331333133313331311331333131121322323   >>      C31232233133313221211113313331311331333133313331311331333131121322322   >>