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