C1111233131211111211113313331333133313331333133313331331121111331313231111   >>    C111123313121111121111331333133313331333133313331333133112111133131323111   <<    C1111233131211111211113313331333133313331333133313331331121111331313231113   >>      C1111233131211111211113313331333133313331333133313331331121111331313231112   >>