C31232233133313221211113313331333132313331322121133131133132212311   >>    C3123223313331322121111331333133313231333132212113313113313221231   <<    C31232233133313221211113313331333132313331322121133131133132212313   >>      C31232233133313221211113313331333132313331322121133131133132212312   >>