C111123313331323113313331333133313231333132311312111133131133133311212231   >>    C11112331333132311331333133313331323133313231131211113313113313331121223   <<    C111123313331323113313331333133313231333132311312111133131133133311212233   >>      C111123313331323113313331333133313231333132311312111133131133133311212232   >>