C1111233131211111211113313331333133313331333133313331333133313331322221211311   >>    C111123313121111121111331333133313331333133313331333133313331333132222121131   <<    C1111233131211111211113313331333133313331333133313331333133313331322221211313   >>      C1111233131211111211113313331333133313331333133313331333133313331322221211312   >>