import java.util.*;
 
public class Main {
	public static void main(String[] args) throws Exception{
		Scanner sc = new Scanner(System.in);
        int count5 = 0;
        int count7 = 0;
        for(int i = 0; i < 3; i++){
        	int n = sc.nextInt();
            if(n == 5){
            	count5++;
            }else if(n == 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