C1111233133313231133133313331333133313231232313331333133313223232311   >>    C111123313331323113313331333133313331323123231333133313331322323231   <<    C1111233133313231133133313331333133313231232313331333133313223232313   >>      C1111233133313231133133313331333133313231232313331333133313223232312   >>