C31232233133313221211113313331333132313331322121111131133233231   >>    C3123223313331322121111331333133313231333132212111113113323323   <<    C31232233133313221211113313331333132313331322121111131133233233   >>      C31232233133313221211113313331333132313331322121111131133233232   >>