import java.io.*;
public class Main {
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String str = br.readLine();
		String[] strs = str.split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int c = Integer.parseInt(strs[2]);
		if(a < b){
			if(b < c){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}else{
			System.out.println("No");
		}//if
		br.close();
	}
} import java.io.*; io.* java public class Main {
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String str = br.readLine();
		String[] strs = str.split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int c = Integer.parseInt(strs[2]);
		if(a < b){
			if(b < c){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}else{
			System.out.println("No");
		}//if
		br.close();
	}
} Main public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String str = br.readLine();
		String[] strs = str.split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int c = Integer.parseInt(strs[2]);
		if(a < b){
			if(b < c){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}else{
			System.out.println("No");
		}//if
		br.close();
	} main {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String str = br.readLine();
		String[] strs = str.split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int c = Integer.parseInt(strs[2]);
		if(a < b){
			if(b < c){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}else{
			System.out.println("No");
		}//if
		br.close();
	} BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); br new BufferedReader(new InputStreamReader(System.in)) String str = br.readLine(); str br.readLine() br.readLine br String[] strs = str.split(" "); strs str.split(" ") str.split str " " int a = Integer.parseInt(strs[0]); a Integer.parseInt(strs[0]) Integer.parseInt Integer strs[0] strs 0 int b = Integer.parseInt(strs[1]); b Integer.parseInt(strs[1]) Integer.parseInt Integer strs[1] strs 1 int c = Integer.parseInt(strs[2]); c Integer.parseInt(strs[2]) Integer.parseInt Integer strs[2] strs 2 if(a < b){
			if(b < c){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}else{
			System.out.println("No");
		}//if a < b a b {
			if(b < c){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		} if(b < c){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			} 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" {
			System.out.println("No");
		} System.out.println("No") System.out.println System.out System System.out "No" br.close() br.close br String[] args args public class Main {
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String str = br.readLine();
		String[] strs = str.split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int c = Integer.parseInt(strs[2]);
		if(a < b){
			if(b < c){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}else{
			System.out.println("No");
		}//if
		br.close();
	}
} public class Main {
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String str = br.readLine();
		String[] strs = str.split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int c = Integer.parseInt(strs[2]);
		if(a < b){
			if(b < c){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}else{
			System.out.println("No");
		}//if
		br.close();
	}
} Main
import java.io.*;
public class Main {
	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String str = br.readLine();
		String[] strs = str.split(" ");
		int a = Integer.parseInt(strs[0]);
		int b = Integer.parseInt(strs[1]);
		int c = Integer.parseInt(strs[2]);
		if(a < b){
			if(b < c){
				System.out.println("Yes");
			}else{
				System.out.println("No");
			}
		}else{
			System.out.println("No");
		}//if
		br.close();
	}
}