import java.io.*;

class Main{
	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();
		String strArr[] = str.split(" ");

		int a, b, c;

		a = Integer.parseInt(strArr[0]);
		b = Integer.parseInt(strArr[1]);
		c = Integer.parseInt(strArr[2]);

		if(a<b && b<c){
			System.out.println("Yes");
		}
		else{
			System.out.println("No");
		}
	}
} import java.io.*; io.* java class Main{
	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();
		String strArr[] = str.split(" ");

		int a, b, c;

		a = Integer.parseInt(strArr[0]);
		b = Integer.parseInt(strArr[1]);
		c = Integer.parseInt(strArr[2]);

		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));

		String str = br.readLine();
		String strArr[] = str.split(" ");

		int a, b, c;

		a = Integer.parseInt(strArr[0]);
		b = Integer.parseInt(strArr[1]);
		c = Integer.parseInt(strArr[2]);

		if(a<b && b<c){
			System.out.println("Yes");
		}
		else{
			System.out.println("No");
		}
	} main {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();
		String strArr[] = str.split(" ");

		int a, b, c;

		a = Integer.parseInt(strArr[0]);
		b = Integer.parseInt(strArr[1]);
		c = Integer.parseInt(strArr[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 str = br.readLine(); str br.readLine() br.readLine br String strArr[] = str.split(" "); strArr str.split(" ") str.split str " " int a a b b c; c a = Integer.parseInt(strArr[0]) a Integer.parseInt(strArr[0]) Integer.parseInt Integer strArr[0] strArr 0 b = Integer.parseInt(strArr[1]) b Integer.parseInt(strArr[1]) Integer.parseInt Integer strArr[1] strArr 1 c = Integer.parseInt(strArr[2]) c Integer.parseInt(strArr[2]) Integer.parseInt Integer strArr[2] strArr 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
import java.io.*;

class Main{
	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String str = br.readLine();
		String strArr[] = str.split(" ");

		int a, b, c;

		a = Integer.parseInt(strArr[0]);
		b = Integer.parseInt(strArr[1]);
		c = Integer.parseInt(strArr[2]);

		if(a<b && b<c){
			System.out.println("Yes");
		}
		else{
			System.out.println("No");
		}
	}
}