C1111233131211111211113313331333133313331322322331312111113331312322311   >>    C111123313121111121111331333133313331333132232233131211111333131232231   <<    C1111233131211111211113313331333133313331322322331312111113331312322313   >>      C1111233131211111211113313331333133313331322322331312111113331312322312   >>