#include <iostream>
using namespace std;

int main() {

    int N = 3;
    int hen[3];
    
    cout << N;
    
 
        cin >> hen[0] >> hen[1] >> hen[2];
    
    
    sort(hen, hen + 3);
    
  
    
    if (hen[2] * hen[2] == hen[0] * hen[0] + hen[1] * hen[1]) {
        cout << "YES";
       else cout << "NO";
        
    }

    return 0;
}