C312312111111331312111133133313331333133322331323133313223313233311   >>    C31231211111133131211113313331333133313332233132313331322331323331   <<    C312312111111331312111133133313331333133322331323133313223313233313   >>      C312312111111331312111133133313331333133322331323133313223313233312   >>