import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String[] abc = sc.nextLine().split(" ");
        sc.close();

        int count5 = 0;
        int count7 = 0;
        for(String s: abc) {
            if(s.equals("5")) {
                count5++;
            } else if(s.equals("7")) {
                count7++;
            }
        }
        if(count5 == 2 && count7 == 1) {
            System.out.println("YES");
        } else {
            System.out.println("NO");
        }
    }
}

/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