#include <stdio.h>
#include <math.h>

int main(void)
{
	int a = 0;
	int b = 0;
	int i = 0;
	float c = 0;
	float d = 0;
	float diff_a = 0;
	float diff_b = 0;
	do
	{
		a = i+100;
		b = i+168;
		//使用sqrt函数计算开方后的数
		c = sqrt(a);
		d = sqrt(b);
		//判断开方后是否为整数
		diff_a = c - (int)c;
		diff_b = d - (int)d;
		if(diff_a == 0 && diff_b ==0)
		{
			printf("%d \r\n",i);
			break;
		}
		i++;
	}while(1);
	return 0;
}