C312322331333132212111133133313331323132322331333132333131133121121   >>    C31232233133313221211113313331333132313232233133313233313113312112   <<    C312322331333132212111133133313331323132322331333132333131133121123   >>      C312322331333132212111133133313331323132322331333132333131133121122   >>