C312312111133131212111133131133133313331323223313331311213113121   >>    C31231211113313121211113313113313331333132322331333131121311312   <<    C312312111133131212111133131133133313331323223313331311213113123   >>      C312312111133131212111133131133133313331323223313331311213113122   >>