C31232233133313221211113313331333132313331322121111113313311211113313232232311   >>    C3123223313331322121111331333133313231333132212111111331331121111331323223231   <<    C31232233133313221211113313331333132313331322121111113313311211113313232232313   >>      C31232233133313221211113313331333132313331322121111113313311211113313232232312   >>