C312322331333132212111133133313113313331333133313133313112112121   >>    C31232233133313221211113313331311331333133313331313331311211212   <<    C312322331333132212111133133313113313331333133313133313112112123   >>      C312322331333132212111133133313113313331333133313133313112112122   >>