C11112331312111112111133133313231333132311212111133131133131333133313331322121   >>    C1111233131211111211113313331323133313231121211113313113313133313331333132212   <<    C11112331312111112111133133313231333132311212111133131133131333133313331322123   >>      C11112331312111112111133133313231333132311212111133131133131333133313331322122   >>