9通常被认为是一个幸运数字，因为它是3乘以3的乘积。

Nine is usually thought of as a lucky number because it is the product of three times three.

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由于乘法的操作数是两个64位的值，它们的乘积是一个128位的数字。

Since the operands for the multiplication are 64-bit values, the result of their product is a 128-bit number.

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在这个2020网格中，处于任何方向上(上，下，左，右或者对角线)的四个相邻数字的乘积的最大值是多少？

What is the greatest product of four adjacent Numbers in any direction (up, down, left, right, or diagonally) in the 2020 grid?

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