import java.util.Scanner;

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<b){
          if(b<c)
            System.out.println("Yes");
          else
            System.out.println("No");
        }
        else
            System.out.println("No");
      sc.close();
   }
} import java.util.Scanner; Scanner 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<b){
          if(b<c)
            System.out.println("Yes");
          else
            System.out.println("No");
        }
        else
            System.out.println("No");
      sc.close();
   }
} 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<b){
          if(b<c)
            System.out.println("Yes");
          else
            System.out.println("No");
        }
        else
            System.out.println("No");
      sc.close();
   } main {
      Scanner sc = new Scanner(System.in);
      int a = sc.nextInt();
      int b = sc.nextInt();
      int c = sc.nextInt();
        if(a<b){
          if(b<c)
            System.out.println("Yes");
          else
            System.out.println("No");
        }
        else
            System.out.println("No");
      sc.close();
   } 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){
          if(b<c)
            System.out.println("Yes");
          else
            System.out.println("No");
        }
        else
            System.out.println("No"); a<b a b {
          if(b<c)
            System.out.println("Yes");
          else
            System.out.println("No");
        } if(b<c)
            System.out.println("Yes");
          else
            System.out.println("No"); b<c b c System.out.println("Yes") System.out.println System.out System System.out "Yes" System.out.println("No") System.out.println System.out System System.out "No" System.out.println("No") System.out.println System.out System System.out "No" sc.close() sc.close sc 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<b){
          if(b<c)
            System.out.println("Yes");
          else
            System.out.println("No");
        }
        else
            System.out.println("No");
      sc.close();
   }
} 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<b){
          if(b<c)
            System.out.println("Yes");
          else
            System.out.println("No");
        }
        else
            System.out.println("No");
      sc.close();
   }
} Main
import java.util.Scanner;

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<b){
          if(b<c)
            System.out.println("Yes");
          else
            System.out.println("No");
        }
        else
            System.out.println("No");
      sc.close();
   }
}
