C1111233131211111211113313331333133313331322322331312111113112311   >>    C111123313121111121111331333133313331333132232233131211111311231   <<    C1111233131211111211113313331333133313331322322331312111113112313   >>      C1111233131211111211113313331333133313331322322331312111113112312   >>