C312322331333132212111133133313331333133312121111331333112331333133323213233311   >>    C31232233133313221211113313331333133313331212111133133311233133313332321323331   <<    C312322331333132212111133133313331333133312121111331333112331333133323213233313   >>      C312322331333132212111133133313331333133312121111331333112331333133323213233312   >>