import java.util.*;
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int[] a = new int[3];
        int five = 0;
        int seven = 0;

        for(int i = 0; i < a.length; i++){
            // System.out.println(i + "文字目を入力してください");
            a[i] = sc.nextInt();
        }
        for(int i = 0; i < a.length; i++){
            if(a[i] == 5){
                five++;
            } else if(a[i] == 7){
                seven++;
            }
        }
        if(five == 2 && seven == 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