const int ArrLen = 6;
        const int MaxNum = 6;

        public static void Main(string[] args)
        {
            // initialize
            var rnd = new Random();
            var nums = new long[ArrLen];
            for (var i = 0; i < ArrLen; i++)
            {
                var num = rnd.Next(1, MaxNum);
                Console.Write(num + ", ");
                nums[i] = num;
            }
            Console.WriteLine();

            // compute products to the left and products to the right
            var lProds = new long[ArrLen];
            var rProds = new long[ArrLen];
            var lProd = 1l;
            var rProd = 1l;

            for (var i = 0; i < ArrLen; i++)
            {
                lProds[i] = lProd;
                rProds[ArrLen-1-i] = rProd;

                lProd *= nums[i];
                rProd *= nums[ArrLen-1-i];
            }

            // product = left * right
            for (var i = 0; i < ArrLen; i++)
            {
                Console.Write(lProds[i]*rProds[i] + ", ");
            }
            Console.WriteLine();
        }