游戏者将得到6个不同的自然数作为操作数，

以及另外一个自然数作为理想目标数，而您的任务是对这6个操作数进行适当的算

术运算，要求运算结果小于或等于理想目标数，并且我们希望所得结果是最优的，

即结果要最接近理想目标数。-Games will be six different natural numbers as operands, and another one as the ideal target of natural number, and your task is to these six operands arithmetic appropriate to require operation result is less than or equal to the number of the desired objectives, and we hope that the results are optimal, that is, the results must be closest to the number of the desired objectives.