#include <iostream>

using namespace std;

int main()
{
    int A,B,C;
    cin>>A>>B>>C;
    if(A==5&&B==5&&C==7)
    {
        cout<<"YES"<<endl;
    }
    else if(A==5&&B==7&&C==5)
    {
        cout<<"YES"<<endl;
    }
    else if(A==7&&B==5&&C==5)
    {
        cout<<"YES"<<endl;
    }
    else cout << "NO" << endl;
    return 0;
}
