C111123313331323113313331333133313231333132311312111133133313112233121   >>    C11112331333132311331333133313331323133313231131211113313331311223312   <<    C111123313331323113313331333133313231333132311312111133133313112233123   >>      C111123313331323113313331333133313231333132311312111133133313112233122   >>