import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int five = 0;
        int seven = 0;
        int a = sc.nextInt();
        if(a == 5) five++;
        if(a == 7) seven++;
        int b = sc.nextInt();
        if(b == 5) five++;
        if(b == 7) seven++;
        int c = sc.nextInt();
        if(c == 5) five++;
        if(c == 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