import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		Main main = new Main();
		main.start();
		
		
	}

	private void start() {
		Scanner scanner = new Scanner(System.in);
		int a = scanner.nextInt();
		int b = scanner.nextInt();
		int c = scanner.nextInt();
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		
		
	}

} import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args){
		Main main = new Main();
		main.start();
		
		
	}

	private void start() {
		Scanner scanner = new Scanner(System.in);
		int a = scanner.nextInt();
		int b = scanner.nextInt();
		int c = scanner.nextInt();
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		
		
	}

} Main public static void main(String[] args){
		Main main = new Main();
		main.start();
		
		
	} main {
		Main main = new Main();
		main.start();
		
		
	} Main main = new Main(); main new Main() main.start() main.start main String[] args args private void start() {
		Scanner scanner = new Scanner(System.in);
		int a = scanner.nextInt();
		int b = scanner.nextInt();
		int c = scanner.nextInt();
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		
		
	} start {
		Scanner scanner = new Scanner(System.in);
		int a = scanner.nextInt();
		int b = scanner.nextInt();
		int c = scanner.nextInt();
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		
		
	} Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) int a = scanner.nextInt(); a scanner.nextInt() scanner.nextInt scanner int b = scanner.nextInt(); b scanner.nextInt() scanner.nextInt scanner int c = scanner.nextInt(); c scanner.nextInt() scanner.nextInt scanner 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("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" public class Main {
	public static void main(String[] args){
		Main main = new Main();
		main.start();
		
		
	}

	private void start() {
		Scanner scanner = new Scanner(System.in);
		int a = scanner.nextInt();
		int b = scanner.nextInt();
		int c = scanner.nextInt();
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		
		
	}

} public class Main {
	public static void main(String[] args){
		Main main = new Main();
		main.start();
		
		
	}

	private void start() {
		Scanner scanner = new Scanner(System.in);
		int a = scanner.nextInt();
		int b = scanner.nextInt();
		int c = scanner.nextInt();
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		
		
	}

} Main
import java.util.Scanner;

public class Main {
	public static void main(String[] args){
		Main main = new Main();
		main.start();
		
		
	}

	private void start() {
		Scanner scanner = new Scanner(System.in);
		int a = scanner.nextInt();
		int b = scanner.nextInt();
		int c = scanner.nextInt();
		
		if(a < b && b < c){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
		
		
	}

}