C111123313331323113313331333133313331323123231333132333131331121   >>    C11112331333132311331333133313331333132312323133313233313133112   <<    C111123313331323113313331333133313331323123231333132333131331123   >>      C111123313331323113313331333133313331323123231333132333131331122   >>