import java.util.*;
public class Main {
    
    static void solve(){
        Scanner sc = new Scanner(System.in);
        int fives = 0, seven = 0;
        int[] a = {sc.nextInt(),sc.nextInt(),sc.nextInt()};
        for(int i : a){
            if(i==5) fives++;
            if(i==7) seven++;
        }
        System.out.println(((fives==2)&&(seven==1)) ? "YES" : "NO");
        sc.close();
    }
    
    public static void main(String args[]) {
        solve();
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz