C31232233133313221211113313331333133313332321333131133131121311311   >>    C3123223313331322121111331333133313331333232133313113313112131131   <<    C31232233133313221211113313331333133313332321333131133131121311313   >>      C31232233133313221211113313331333133313332321333131133131121311312   >>