C31232233133313221211113313331333133313331212111112113313113323311   >>    C3123223313331322121111331333133313331333121211111211331311332331   <<    C31232233133313221211113313331333133313331212111112113313113323313   >>      C31232233133313221211113313331333133313331212111112113313113323312   >>