C31232233133313221211113313331333133313332321333131133132313331311312112233231   >>    C3123223313331322121111331333133313331333232133313113313231333131131211223323   <<    C31232233133313221211113313331333133313332321333131133132313331311312112233233   >>      C31232233133313221211113313331333133313332321333131133132313331311312112233232   >>