import java.util.*;
 
public class Main {
 
public static void main(String[] args){
  	int count5 = 0;
  	int count7 = 0;
	Scanner sc = new Scanner(System.in);
    String[] line = sc.nextLine().split(" ");
	for(String n:line){
    	if(n.equals("5")){
        	count5++;
        }
       	if(n.equals("7")){
        	count7++;
        }
    }
  if(count5==2 && count7==1){
  	System.out.println("YES");
  }else {
	System.out.println("NO");
  }
	
}
} import java.util.*; util.* java public class Main {
 
public static void main(String[] args){
  	int count5 = 0;
  	int count7 = 0;
	Scanner sc = new Scanner(System.in);
    String[] line = sc.nextLine().split(" ");
	for(String n:line){
    	if(n.equals("5")){
        	count5++;
        }
       	if(n.equals("7")){
        	count7++;
        }
    }
  if(count5==2 && count7==1){
  	System.out.println("YES");
  }else {
	System.out.println("NO");
  }
	
}
} Main public static void main(String[] args){
  	int count5 = 0;
  	int count7 = 0;
	Scanner sc = new Scanner(System.in);
    String[] line = sc.nextLine().split(" ");
	for(String n:line){
    	if(n.equals("5")){
        	count5++;
        }
       	if(n.equals("7")){
        	count7++;
        }
    }
  if(count5==2 && count7==1){
  	System.out.println("YES");
  }else {
	System.out.println("NO");
  }
	
} main {
  	int count5 = 0;
  	int count7 = 0;
	Scanner sc = new Scanner(System.in);
    String[] line = sc.nextLine().split(" ");
	for(String n:line){
    	if(n.equals("5")){
        	count5++;
        }
       	if(n.equals("7")){
        	count7++;
        }
    }
  if(count5==2 && count7==1){
  	System.out.println("YES");
  }else {
	System.out.println("NO");
  }
	
} int count5 = 0; count5 0 int count7 = 0; count7 0 Scanner sc = new Scanner(System.in); sc new Scanner(System.in) String[] line = sc.nextLine().split(" "); line sc.nextLine().split(" ") sc.nextLine().split sc.nextLine() sc.nextLine sc " " for(String n:line){
    	if(n.equals("5")){
        	count5++;
        }
       	if(n.equals("7")){
        	count7++;
        }
    } String n line {
    	if(n.equals("5")){
        	count5++;
        }
       	if(n.equals("7")){
        	count7++;
        }
    } {
    	if(n.equals("5")){
        	count5++;
        }
       	if(n.equals("7")){
        	count7++;
        }
    } if(n.equals("5")){
        	count5++;
        } n.equals("5") n.equals n "5" {
        	count5++;
        } count5++ count5 if(n.equals("7")){
        	count7++;
        } n.equals("7") n.equals n "7" {
        	count7++;
        } count7++ count7 if(count5==2 && count7==1){
  	System.out.println("YES");
  }else {
	System.out.println("NO");
  } count5==2 && count7==1 count5==2 count5 2 count7==1 count7 1 {
  	System.out.println("YES");
  } System.out.println("YES") System.out.println System.out System System.out "YES" {
	System.out.println("NO");
  } System.out.println("NO") System.out.println System.out System System.out "NO" String[] args args public class Main {
 
public static void main(String[] args){
  	int count5 = 0;
  	int count7 = 0;
	Scanner sc = new Scanner(System.in);
    String[] line = sc.nextLine().split(" ");
	for(String n:line){
    	if(n.equals("5")){
        	count5++;
        }
       	if(n.equals("7")){
        	count7++;
        }
    }
  if(count5==2 && count7==1){
  	System.out.println("YES");
  }else {
	System.out.println("NO");
  }
	
}
} public class Main {
 
public static void main(String[] args){
  	int count5 = 0;
  	int count7 = 0;
	Scanner sc = new Scanner(System.in);
    String[] line = sc.nextLine().split(" ");
	for(String n:line){
    	if(n.equals("5")){
        	count5++;
        }
       	if(n.equals("7")){
        	count7++;
        }
    }
  if(count5==2 && count7==1){
  	System.out.println("YES");
  }else {
	System.out.println("NO");
  }
	
}
} Main
import java.util.*;
 
public class Main {
 
public static void main(String[] args){
  	int count5 = 0;
  	int count7 = 0;
	Scanner sc = new Scanner(System.in);
    String[] line = sc.nextLine().split(" ");
	for(String n:line){
    	if(n.equals("5")){
        	count5++;
        }
       	if(n.equals("7")){
        	count7++;
        }
    }
  if(count5==2 && count7==1){
  	System.out.println("YES");
  }else {
	System.out.println("NO");
  }
	
}
}