C312322331333132212111133131133133313331333131131312111133131133131231221   >>    C31232233133313221211113313113313331333133313113131211113313113313123122   <<    C312322331333132212111133131133133313331333131131312111133131133131231223   >>      C312322331333132212111133131133133313331333131131312111133131133131231222   >>