C111123313121111121111331323133313331333132333133313232313232331   >>    C11112331312111112111133132313331333133313233313331323231323233   <<    C111123313121111121111331323133313331333132333133313232313232333   >>      C111123313121111121111331323133313331333132333133313232313232332   >>