C31232233133313221211113313331333131211113313232213331121132231   >>    C3123223313331322121111331333133313121111331323221333112113223   <<    C31232233133313221211113313331333131211113313232213331121132233   >>      C31232233133313221211113313331333131211113313232213331121132232   >>