import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
		int A = sc.nextInt();
		int B = sc.nextInt();
		int C = sc.nextInt();
		int five = 0;
		int seven = 0;
		if (A == 5) {
		    five++;    
		} else if (A == 7) {
		    seven++;
		}
		if (B == 5) {
		    five++;    
		} else if (B == 7) {
		    seven++;
		}
		if (C == 5) {
		    five++;    
		} else 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