C31232233133313221211113313113313331333133313331121133132333121   >>    C3123223313331322121111331311331333133313331333112113313233312   <<    C31232233133313221211113313113313331333133313331121133132333123   >>      C31232233133313221211113313113313331333133313331121133132333122   >>