#include <iostream.h>
#include <stdio.h>
#include <math.h>
#include <conio.h>
int sump(int a,int b)
{ 
	return a*a+b*b;
}
void main()
{
	int c,i,a[100];

	cout <<"c=";
	cin >>c;

	int k=0;

	do
	{
		cout<<"Introduceti numarul:";
		cin>>a[k];
		k++;
	}
	while(a[k-1]!=c);

	int cp=c*c;
    int cont=0;
	for(i=0;i<k;i++)
		if(sump(a[i],a[i+1])==cp)
		{
			cout<<"("<<a[i]<<","<<a[i+1]<<") ";
			cont++;
		}

		cout<<endl;
	if(cont==0) cout<<"Nu sunt perechi!"<<endl;

getch();

}