#include <iostream>


using namespace std;
 
int main()
{

	int a, b, c, d;
	cin >> a >> b >> c;

	d = c * c;

	if ( d == ( a * a ) + ( b * b ) ) {
		cout << "YES" << endl;
	} else {
		cout << "NO" << endl;
	}
	
	return 0;
}