#include "pch.h"
#include <iostream>

using namespace std;

bool isTriangle(double, double, double);
bool isRectangular(double a, double b, double c);

const double e = 0.0001;

int main(const int argc, char ** argv)
{
	double a, b, c;

	cin >> a >> b >> c;

	if (isTriangle(a, b, c)) {
		if (isRectangular(a, b, c) || isRectangular(a, c, b) || isRectangular(b, a, c) || isRectangular(b, c, a) || isRectangular(c, a, b) || isRectangular(c, b, a)) {
			cout << "YES";
		}
	}
	else cout << "NO";

	return 0;
}

bool isTriangle(double a, double b, double c) {
	if (a + b > c && b + c > a && a + c > b) return true;
	else return false;
}

bool isRectangular(double a, double b, double c) {
	if (e > abs(b * b + c * c - a * a) || e > abs(b * b + a * a - c * c) || e > abs(a * a + c * c - b * b)) { // равносильно теореме Пифагора, но с погрешностью e
		return true;
	}
	else return false;
}