C31232233133313221211113313331333133313113311331333131133131131312321   >>    C3123223313331322121111331333133313331311331133133313113313113131232   <<    C31232233133313221211113313331333133313113311331333131133131131312323   >>      C31232233133313221211113313331333133313113311331333131133131131312322   >>