C1111233131211111211113313331333133313331333133313331333133313221211113331311   >>    C111123313121111121111331333133313331333133313331333133313331322121111333131   <<    C1111233131211111211113313331333133313331333133313331333133313221211113331313   >>      C1111233131211111211113313331333133313331333133313331333133313221211113331312   >>