C111123313121111121111331333133313331323232133313331312331311331122112121   >>    C11112331312111112111133133313331333132323213331333131233131133112211212   <<    C111123313121111121111331333133313331323232133313331312331311331122112123   >>      C111123313121111121111331333133313331323232133313331312331311331122112122   >>