C1111233131211111211113313331333133313331333133313331333133313113313231133111   >>    C111123313121111121111331333133313331333133313331333133313331311331323113311   <<    C1111233131211111211113313331333133313331333133313331333133313113313231133113   >>      C1111233131211111211113313331333133313331333133313331333133313113313231133112   >>