C31232233133313221211113313331333133313331212111112113313113313131   >>    C3123223313331322121111331333133313331333121211111211331311331313   <<    C31232233133313221211113313331333133313331212111112113313113313133   >>      C31232233133313221211113313331333133313331212111112113313113313132   >>