#include<iostream>
using namespace std;
int main()
{
	int a,b,c;
	cin>>a>>b>>c;
	if(a==5&&b==7&&c==5)
	cout<<"YES"<<endl;
	else
		if(a==5&&b==5&&c==7)
			cout<<"YES"<<endl;
	else
		if(a==7&&b==5&&c==5)
			cout<<"YES"<<endl;
	else
		cout<<"NO"<<endl;
	return 0;
}