C1111233131211111211113313331333133313331333133313331333133313233313331323311   >>    C111123313121111121111331333133313331333133313331333133313331323331333132331   <<    C1111233131211111211113313331333133313331333133313331333133313233313331323313   >>      C1111233131211111211113313331333133313331333133313331333133313233313331323312   >>