import java.util.*;

public class Main{
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        String[] list={sc.next(), sc.next(), sc.next()};
        int five_count=0;
        int seven_count=0;
        for(String l:list){
            if(l.equals("5"))
                five_count++;
            else if(l.equals("7"))
                seven_count++;
        }
        if(five_count==2 && seven_count==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