C312322331333132212111133133313331333131133113313331333131133211231231   >>    C31232233133313221211113313331333133313113311331333133313113321123123   <<    C312322331333132212111133133313331333131133113313331333131133211231233   >>      C312322331333132212111133133313331333131133113313331333131133211231232   >>