C312322331333132212111133133313331333133312121111331333133321111232311   >>    C31232233133313221211113313331333133313331212111133133313332111123231   <<    C312322331333132212111133133313331333133312121111331333133321111232313   >>      C312322331333132212111133133313331333133312121111331333133321111232312   >>