import java.util.*;

public class Main{

	public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
      
        if(a == 5){
          if(b == 5){
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }
        }else if(a == 7){
          if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          }
        }else{
            System.out.println("NO");
        }
	}
} import java.util.*; util.* java public class Main{

	public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
      
        if(a == 5){
          if(b == 5){
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }
        }else if(a == 7){
          if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          }
        }else{
            System.out.println("NO");
        }
	}
} Main public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
      
        if(a == 5){
          if(b == 5){
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }
        }else if(a == 7){
          if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          }
        }else{
            System.out.println("NO");
        }
	} main {

		Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
      
        if(a == 5){
          if(b == 5){
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }
        }else if(a == 7){
          if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          }
        }else{
            System.out.println("NO");
        }
	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc int b = sc.nextInt(); b sc.nextInt() sc.nextInt sc int c = sc.nextInt(); c sc.nextInt() sc.nextInt sc if(a == 5){
          if(b == 5){
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }
        }else if(a == 7){
          if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          }
        }else{
            System.out.println("NO");
        } a == 5 a 5 {
          if(b == 5){
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }
        } if(b == 5){
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          } b == 5 b 5 {
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          } if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            } c == 7 c 7 {
              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" if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          } b == 7 b 7 {
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          } if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            } c == 5 c 5 {
              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" if(a == 7){
          if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          }
        }else{
            System.out.println("NO");
        } a == 7 a 7 {
          if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          }
        } if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          } b == 5 b 5 {
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          } if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            } c == 5 c 5 {
              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" {
            System.out.println("NO");
          } System.out.println("NO") System.out.println System.out System System.out "NO" {
            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){

		Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
      
        if(a == 5){
          if(b == 5){
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }
        }else if(a == 7){
          if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          }
        }else{
            System.out.println("NO");
        }
	}
} public class Main{

	public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
      
        if(a == 5){
          if(b == 5){
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }
        }else if(a == 7){
          if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          }
        }else{
            System.out.println("NO");
        }
	}
} Main
import java.util.*;

public class Main{

	public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
      
        if(a == 5){
          if(b == 5){
            if(c == 7){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else if(b == 7){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }
        }else if(a == 7){
          if(b == 5){
            if(c == 5){
              System.out.println("YES");
            }else{
              System.out.println("NO");
            }
          }else{
            System.out.println("NO");
          }
        }else{
            System.out.println("NO");
        }
	}
}