import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		Scanner sc = new Scanner(br.readLine());
		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.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io import java.util.Scanner; Scanner java.util public class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		Scanner sc = new Scanner(br.readLine());
		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 {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		Scanner sc = new Scanner(br.readLine());
		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 {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		Scanner sc = new Scanner(br.readLine());
		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");
	} BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); br new BufferedReader(new InputStreamReader(System.in)) Scanner sc = new Scanner(br.readLine()); sc new Scanner(br.readLine()) 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 System.out System System.out "Yes" 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 {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		Scanner sc = new Scanner(br.readLine());
		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 {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		Scanner sc = new Scanner(br.readLine());
		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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		Scanner sc = new Scanner(br.readLine());
		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");
	}
	

}