C111123313331323113313331333133313331323123231333133313331333313223313331313121   >>    C11112331333132311331333133313331333132312323133313331333133331322331333131312   <<    C111123313331323113313331333133313331323123231333133313331333313223313331313123   >>      C111123313331323113313331333133313331323123231333133313331333313223313331313122   >>