import java.io.IOException;
import java.util.Scanner;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
             
       Scanner sc = new Scanner(System.in);
      int a = sc.nextInt();
      int b = sc.nextInt();
      int c = sc.nextInt();
      
      if(a<b && b<c){
    	  System.out.println("Yes");
    
      } 
      
      else{
    	  System.out.println("No");
      }
      
    }
} import java.io.IOException; IOException java.io import java.util.Scanner; Scanner java.util public class Main {
 
    public static void main(String[] args) throws IOException {
             
       Scanner sc = new Scanner(System.in);
      int a = sc.nextInt();
      int b = sc.nextInt();
      int c = sc.nextInt();
      
      if(a<b && b<c){
    	  System.out.println("Yes");
    
      } 
      
      else{
    	  System.out.println("No");
      }
      
    }
} Main public static void main(String[] args) throws IOException {
             
       Scanner sc = new Scanner(System.in);
      int a = sc.nextInt();
      int b = sc.nextInt();
      int c = sc.nextInt();
      
      if(a<b && b<c){
    	  System.out.println("Yes");
    
      } 
      
      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<b && b<c){
    	  System.out.println("Yes");
    
      } 
      
      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<b && b<c){
    	  System.out.println("Yes");
    
      } 
      
      else{
    	  System.out.println("No");
      } a<b && b<c a<b a b b<c b c {
    	  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) throws IOException {
             
       Scanner sc = new Scanner(System.in);
      int a = sc.nextInt();
      int b = sc.nextInt();
      int c = sc.nextInt();
      
      if(a<b && b<c){
    	  System.out.println("Yes");
    
      } 
      
      else{
    	  System.out.println("No");
      }
      
    }
} public class Main {
 
    public static void main(String[] args) throws IOException {
             
       Scanner sc = new Scanner(System.in);
      int a = sc.nextInt();
      int b = sc.nextInt();
      int c = sc.nextInt();
      
      if(a<b && b<c){
    	  System.out.println("Yes");
    
      } 
      
      else{
    	  System.out.println("No");
      }
      
    }
} Main
import java.io.IOException;
import java.util.Scanner;
 
public class Main {
 
    public static void main(String[] args) throws IOException {
             
       Scanner sc = new Scanner(System.in);
      int a = sc.nextInt();
      int b = sc.nextInt();
      int c = sc.nextInt();
      
      if(a<b && b<c){
    	  System.out.println("Yes");
    
      } 
      
      else{
    	  System.out.println("No");
      }
      
    }
}