import java.util.*;

public class Main {
    public static int five = 0;
    public static int seven = 0;
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String text = scanner.nextLine();
        check(text.split(" ")[0]);
        check(text.split(" ")[1]);
        check(text.split(" ")[2]);
        System.out.println(five==2 && seven ==1 ? "YES":"NO");
    }
    public static void check(String str){
        int number = Integer.parseInt(str);
        if(number==5)five++;
        if(number==7)seven++;
    }

}
/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