C31232233133313221211113313331333133313331212111112113313113313222331221   >>    C3123223313331322121111331333133313331333121211111211331311331322233122   <<    C31232233133313221211113313331333133313331212111112113313113313222331223   >>      C31232233133313221211113313331333133313331212111112113313113313222331222   >>