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


public class Main {

	public static void main(String[] args) throws IOException{
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String line = new String();
		while(br.ready()){
			line= br.readLine();
		}
		String[] abc = line.split(" ");
		int a = Integer.parseInt(abc[0]);
		int b = Integer.parseInt(abc[1]);
		int c = Integer.parseInt(abc[2]);
		
		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 public class Main {

	public static void main(String[] args) throws IOException{
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String line = new String();
		while(br.ready()){
			line= br.readLine();
		}
		String[] abc = line.split(" ");
		int a = Integer.parseInt(abc[0]);
		int b = Integer.parseInt(abc[1]);
		int c = Integer.parseInt(abc[2]);
		
		if(a<b && b<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}

	}

} Main public static void main(String[] args) throws IOException{
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String line = new String();
		while(br.ready()){
			line= br.readLine();
		}
		String[] abc = line.split(" ");
		int a = Integer.parseInt(abc[0]);
		int b = Integer.parseInt(abc[1]);
		int c = Integer.parseInt(abc[2]);
		
		if(a<b && b<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}

	} main {
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String line = new String();
		while(br.ready()){
			line= br.readLine();
		}
		String[] abc = line.split(" ");
		int a = Integer.parseInt(abc[0]);
		int b = Integer.parseInt(abc[1]);
		int c = Integer.parseInt(abc[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 line = new String(); line new String() while(br.ready()){
			line= br.readLine();
		} br.ready() br.ready br {
			line= br.readLine();
		} line= br.readLine() line br.readLine() br.readLine br String[] abc = line.split(" "); abc line.split(" ") line.split line " " int a = Integer.parseInt(abc[0]); a Integer.parseInt(abc[0]) Integer.parseInt Integer abc[0] abc 0 int b = Integer.parseInt(abc[1]); b Integer.parseInt(abc[1]) Integer.parseInt Integer abc[1] abc 1 int c = Integer.parseInt(abc[2]); c Integer.parseInt(abc[2]) Integer.parseInt Integer abc[2] abc 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("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" String[] args args public class Main {

	public static void main(String[] args) throws IOException{
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String line = new String();
		while(br.ready()){
			line= br.readLine();
		}
		String[] abc = line.split(" ");
		int a = Integer.parseInt(abc[0]);
		int b = Integer.parseInt(abc[1]);
		int c = Integer.parseInt(abc[2]);
		
		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{
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String line = new String();
		while(br.ready()){
			line= br.readLine();
		}
		String[] abc = line.split(" ");
		int a = Integer.parseInt(abc[0]);
		int b = Integer.parseInt(abc[1]);
		int c = Integer.parseInt(abc[2]);
		
		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;


public class Main {

	public static void main(String[] args) throws IOException{
		// TODO Auto-generated method stub
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String line = new String();
		while(br.ready()){
			line= br.readLine();
		}
		String[] abc = line.split(" ");
		int a = Integer.parseInt(abc[0]);
		int b = Integer.parseInt(abc[1]);
		int c = Integer.parseInt(abc[2]);
		
		if(a<b && b<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}

	}

}