C111123313331323113313331333133313231333132311312111133131133133313223123231   >>    C11112331333132311331333133313331323133313231131211113313113313331322312323   <<    C111123313331323113313331333133313231333132311312111133131133133313223123233   >>      C111123313331323113313331333133313231333132311312111133131133133313223123232   >>