import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        
        Scanner scan = new Scanner(System.in);
        
        int in = 0;
        int x5 = 0;
        int x7 = 0;
        
        for(int i = 0 ; i < 3 ; i++){
            in = scan.nextInt();
            if(in == 5){
                x5 = x5 + 1;
            }
            if(in == 7){
                x7 = x7 + 1;
            }
        }
        
        String ans = "NO";
        
        if(x5 == 2){
            if(x7 == 1){
                ans = "YES";
            }
        }

        System.out.println(ans);
        
    }
}
/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