C11111211113313112113313331333133313331333132212111133131133311   >>    C1111121111331311211331333133313331333133313221211113313113331   <<    C11111211113313112113313331333133313331333132212111133131133313   >>      C11111211113313112113313331333133313331333132212111133131133312   >>