import java.util.Scanner;

public class Main {
	private void calc(){
		Scanner scanner = new Scanner(System.in);
		int x =scanner.nextInt();
		int y =scanner.nextInt();
		int z =scanner.nextInt();
		if(x<y && y<z){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
	}

	
	public static void main(String[] args) {
		Main run =new Main();
		run.calc();

	}
} import java.util.Scanner; Scanner java.util public class Main {
	private void calc(){
		Scanner scanner = new Scanner(System.in);
		int x =scanner.nextInt();
		int y =scanner.nextInt();
		int z =scanner.nextInt();
		if(x<y && y<z){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
	}

	
	public static void main(String[] args) {
		Main run =new Main();
		run.calc();

	}
} Main private void calc(){
		Scanner scanner = new Scanner(System.in);
		int x =scanner.nextInt();
		int y =scanner.nextInt();
		int z =scanner.nextInt();
		if(x<y && y<z){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
	} calc {
		Scanner scanner = new Scanner(System.in);
		int x =scanner.nextInt();
		int y =scanner.nextInt();
		int z =scanner.nextInt();
		if(x<y && y<z){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
	} Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) int x =scanner.nextInt(); x scanner.nextInt() scanner.nextInt scanner int y =scanner.nextInt(); y scanner.nextInt() scanner.nextInt scanner int z =scanner.nextInt(); z scanner.nextInt() scanner.nextInt scanner if(x<y && y<z){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		} x<y && y<z x<y x y y<z y z {
			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 static void main(String[] args) {
		Main run =new Main();
		run.calc();

	} main {
		Main run =new Main();
		run.calc();

	} Main run =new Main(); run new Main() run.calc() run.calc run String[] args args public class Main {
	private void calc(){
		Scanner scanner = new Scanner(System.in);
		int x =scanner.nextInt();
		int y =scanner.nextInt();
		int z =scanner.nextInt();
		if(x<y && y<z){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
	}

	
	public static void main(String[] args) {
		Main run =new Main();
		run.calc();

	}
} public class Main {
	private void calc(){
		Scanner scanner = new Scanner(System.in);
		int x =scanner.nextInt();
		int y =scanner.nextInt();
		int z =scanner.nextInt();
		if(x<y && y<z){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
	}

	
	public static void main(String[] args) {
		Main run =new Main();
		run.calc();

	}
} Main
import java.util.Scanner;

public class Main {
	private void calc(){
		Scanner scanner = new Scanner(System.in);
		int x =scanner.nextInt();
		int y =scanner.nextInt();
		int z =scanner.nextInt();
		if(x<y && y<z){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
	}

	
	public static void main(String[] args) {
		Main run =new Main();
		run.calc();

	}
}