#include<iostream>
#include <algorithm>
using namespace std;
int main() {
    int a[3];
	for(int j=0;j<3;j++) cin>>a[j];
    sort(a, a + 3);             
	a[0]*=a[0];
	a[1]*=a[1];
	a[2]*=a[2];
	if(a[0]+a[1]!=a[2]){
	cout<<"NO\n";
	}else if(a[0]==0 || a[1]==0 || a[2] ==0){cout<<"NO\n";}
	else{cout<<"YES\n";}
	return 0;
}