将一个四位数分成两段得到的两个两位数，它们的和的平方等于原数，具有这种性质的数没有特殊分布规律，因此采用穷举法对所有四位数进行判断，从而筛选出符合这种性质的四位数。具体算法是任取一个四位数，将其截为两部分，前两位为a，后两位为b，然后套用性质公式计算并判断。-Two two-digit number will get a four-digit divided into two sections, the square of their sum is equal to the original number of this nature there are no special distribution, so a brute-force method to judge all four digits, thus screened-digit meets this nature. Specific algorithm is either to take a four-digit, it cut into two parts, the first two of a, after two of b, and then apply the formula to calculate and determine the nature.