C312312111111331312111133133313121111133313113313331333132322331333132213122311   >>    C31231211111133131211113313331312111113331311331333133313232233133313221312231   <<    C312312111111331312111133133313121111133313113313331333132322331333132213122313   >>      C312312111111331312111133133313121111133313113313331333132322331333132213122312   >>