C3123223313331322121111331333133313331311331133133313113313233222321   >>    C312322331333132212111133133313331333131133113313331311331323322232   <<    C3123223313331322121111331333133313331311331133133313113313233222323   >>      C3123223313331322121111331333133313331311331133133313113313233222322   >>