import java.util.*;

public class Main{
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int five = 0;
        int seven = 0;
        for (int i = 0; i < 3; i++) {
            int t = in.nextInt();
            if(t == 5) five++;
            if(t == 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