import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    sc.useDelimiter("\\s");
    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");
    }  

       
   
  }

} import java.util.*; util.* java public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    sc.useDelimiter("\\s");
    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");
    }  

       
   
  }

} Main public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    sc.useDelimiter("\\s");
    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");
    }  

       
   
  } main {
    Scanner sc = new Scanner(System.in);
    sc.useDelimiter("\\s");
    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");
    }  

       
   
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) sc.useDelimiter("\\s") sc.useDelimiter sc "\\s" 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("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" String[] args args public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    sc.useDelimiter("\\s");
    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");
    }  

       
   
  }

} public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    sc.useDelimiter("\\s");
    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");
    }  

       
   
  }

} Main
import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    sc.useDelimiter("\\s");
    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");
    }  

       
   
  }

}