C31232233133313221211113313331333133313332321333131133131211331231   >>    C3123223313331322121111331333133313331333232133313113313121133123   <<    C31232233133313221211113313331333133313332321333131133131211331233   >>      C31232233133313221211113313331333133313332321333131133131211331232   >>