#include <iostream>
#include <fstream>
#include <math.h>
using namespace std;
int main()
{
	int he;
	int x;
	int j=0;
	double b;
	int c;
	ofstream fout("data.txt");
	for(int i=0;i<500;i++)
	{
		he=500-(i+1);
		double y=sqrt(he);
		fout <<he<<"的勾股弦数："<<endl;
		x=(int)y;
		while(x*x>he/2)
		{
			j=he-x*x;
			b=sqrt(j);
			c=(int)b;
			if(b-c==0&&x>b||c==0)
				    fout <<x<<","<<c<< endl;
			x--;
		}
	}
    return 0;
}