C111123313121111121111331333133313331313331323113313231333132212131   >>    C11112331312111112111133133313331333131333132311331323133313221213   <<    C111123313121111121111331333133313331313331323113313231333132212133   >>      C111123313121111121111331333133313331313331323113313231333132212132   >>