C111123313331323113313331333133313331323123231333131133131131123111   >>    C11112331333132311331333133313331333132312323133313113313113112311   <<    C111123313331323113313331333133313331323123231333131133131131123113   >>      C111123313331323113313331333133313331323123231333131133131131123112   >>