C111123313331323113313331333133313231333132311312111133132323323331333121   >>    C11112331333132311331333133313331323133313231131211113313232332333133312   <<    C111123313331323113313331333133313231333132311312111133132323323331333123   >>      C111123313331323113313331333133313231333132311312111133132323323331333122   >>