C312322331333132212111133133313331333133312121111331333111232311   >>    C31232233133313221211113313331333133313331212111133133311123231   <<    C312322331333132212111133133313331333133312121111331333111232313   >>      C312322331333132212111133133313331333133312121111331333111232312   >>