C312322331333132212111133133313331333133312121111331322133313132233123311   >>    C31232233133313221211113313331333133313331212111133132213331313223312331   <<    C312322331333132212111133133313331333133312121111331322133313132233123313   >>      C312322331333132212111133133313331333133312121111331322133313132233123312   >>