import java.io.*;

class Main
{
 public static void main(String[] args) throws IOException
 {
  BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

  String[] str=br.readLine().split(" ");

  int a=Integer.parseInt(str[0]),b=Integer.parseInt(str[1]),c=Integer.parseInt(str[2]);

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

  String[] str=br.readLine().split(" ");

  int a=Integer.parseInt(str[0]),b=Integer.parseInt(str[1]),c=Integer.parseInt(str[2]);

  if(a<b && b<c)
   System.out.println("Yes");
  else
   System.out.println("No");
 }
} Main public static void main(String[] args) throws IOException
 {
  BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

  String[] str=br.readLine().split(" ");

  int a=Integer.parseInt(str[0]),b=Integer.parseInt(str[1]),c=Integer.parseInt(str[2]);

  if(a<b && b<c)
   System.out.println("Yes");
  else
   System.out.println("No");
 } main {
  BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

  String[] str=br.readLine().split(" ");

  int a=Integer.parseInt(str[0]),b=Integer.parseInt(str[1]),c=Integer.parseInt(str[2]);

  if(a<b && b<c)
   System.out.println("Yes");
  else
   System.out.println("No");
 } BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br new BufferedReader(new InputStreamReader(System.in)) String[] str=br.readLine().split(" "); str br.readLine().split(" ") br.readLine().split br.readLine() br.readLine br " " int a=Integer.parseInt(str[0]) a Integer.parseInt(str[0]) Integer.parseInt Integer str[0] str 0 b=Integer.parseInt(str[1]) b Integer.parseInt(str[1]) Integer.parseInt Integer str[1] str 1 c=Integer.parseInt(str[2]); c Integer.parseInt(str[2]) Integer.parseInt Integer str[2] str 2 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 System.out System System.out "Yes" System.out.println("No") System.out.println System.out System System.out "No" String[] args args
import java.io.*;

class Main
{
 public static void main(String[] args) throws IOException
 {
  BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

  String[] str=br.readLine().split(" ");

  int a=Integer.parseInt(str[0]),b=Integer.parseInt(str[1]),c=Integer.parseInt(str[2]);

  if(a<b && b<c)
   System.out.println("Yes");
  else
   System.out.println("No");
 }
}