import java.util.*;

public class Main{
    public static void main(String[]args){
	Scanner sc = new Scanner(System.in);
	int a[]= new int[3];
	int c5=0, c7=0;
	for(int i=0; i<3; i++){
	    a[i] = sc.nextInt();
	    if(a[i]==5){
		c5++;
	    }
	    if(a[i]==7){
		c7++;
	    }
	}
	if(c5==2 && c7==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