C1111133313331323223313331333133313113313121111331311331333112323321   >>    C111113331333132322331333133313331311331312111133131133133311232332   <<    C1111133313331323223313331333133313113313121111331311331333112323323   >>      C1111133313331323223313331333133313113313121111331311331333112323322   >>