import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int A = sc.nextInt();
        int B = sc.nextInt();
        int C = sc.nextInt();

        int count5 = 0;
        int count7 = 0;

        if(A == 5) count5++;
        else if(A == 7) count7++;

        if(B == 5) count5++;
        else if(B == 7) count7++;

        if(C == 5) count5++;
        else if(C == 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