由8个不同自然数形成奇特的立方体，任意给出n(n不小于8)个不同自然数，任选8个数，将这8个数分别放在一个立方体的八个顶点上，要求每个面上的四个数之和相等，找出所有方案。-Strange cube formed by eight different natural numbers, any given n (n is not less than 8) the number of different natural, optional 8 the number of these eight the number on the eight vertices of a cube, requires that each equal to the surface of the four numbers and to identify all programs.