C312322331333132212111133133313331333133312121111331211111333133313121213311   >>    C31232233133313221211113313331333133313331212111133121111133313331312121331   <<    C312322331333132212111133133313331333133312121111331211111333133313121213313   >>      C312322331333132212111133133313331333133312121111331211111333133313121213312   >>