import java.io.*;
import java.util.StringTokenizer;

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

		try {
			String buf = br.readLine();
			StringTokenizer st = new StringTokenizer(buf);
			int a = Integer.parseInt(st.nextToken());
			int b = Integer.parseInt(st.nextToken());
			int c = Integer.parseInt(st.nextToken());
			if (a<b && b<c) System.out.println("Yes");
			else System.out.println("No");
		} catch (IOException e) {
			System.out.println("IOException!");
		}
	}
} import java.io.*; io.* java import java.util.StringTokenizer; StringTokenizer java.util class Main {
	public static void main(String args[]) {
		InputStreamReader isr = new InputStreamReader(System.in);
		BufferedReader br = new BufferedReader(isr);

		try {
			String buf = br.readLine();
			StringTokenizer st = new StringTokenizer(buf);
			int a = Integer.parseInt(st.nextToken());
			int b = Integer.parseInt(st.nextToken());
			int c = Integer.parseInt(st.nextToken());
			if (a<b && b<c) System.out.println("Yes");
			else System.out.println("No");
		} catch (IOException e) {
			System.out.println("IOException!");
		}
	}
} Main public static void main(String args[]) {
		InputStreamReader isr = new InputStreamReader(System.in);
		BufferedReader br = new BufferedReader(isr);

		try {
			String buf = br.readLine();
			StringTokenizer st = new StringTokenizer(buf);
			int a = Integer.parseInt(st.nextToken());
			int b = Integer.parseInt(st.nextToken());
			int c = Integer.parseInt(st.nextToken());
			if (a<b && b<c) System.out.println("Yes");
			else System.out.println("No");
		} catch (IOException e) {
			System.out.println("IOException!");
		}
	} main {
		InputStreamReader isr = new InputStreamReader(System.in);
		BufferedReader br = new BufferedReader(isr);

		try {
			String buf = br.readLine();
			StringTokenizer st = new StringTokenizer(buf);
			int a = Integer.parseInt(st.nextToken());
			int b = Integer.parseInt(st.nextToken());
			int c = Integer.parseInt(st.nextToken());
			if (a<b && b<c) System.out.println("Yes");
			else System.out.println("No");
		} catch (IOException e) {
			System.out.println("IOException!");
		}
	} InputStreamReader isr = new InputStreamReader(System.in); isr new InputStreamReader(System.in) BufferedReader br = new BufferedReader(isr); br new BufferedReader(isr) try {
			String buf = br.readLine();
			StringTokenizer st = new StringTokenizer(buf);
			int a = Integer.parseInt(st.nextToken());
			int b = Integer.parseInt(st.nextToken());
			int c = Integer.parseInt(st.nextToken());
			if (a<b && b<c) System.out.println("Yes");
			else System.out.println("No");
		} catch (IOException e) {
			System.out.println("IOException!");
		} catch (IOException e) {
			System.out.println("IOException!");
		} IOException e {
			System.out.println("IOException!");
		} System.out.println("IOException!") System.out.println System.out System System.out "IOException!" {
			String buf = br.readLine();
			StringTokenizer st = new StringTokenizer(buf);
			int a = Integer.parseInt(st.nextToken());
			int b = Integer.parseInt(st.nextToken());
			int c = Integer.parseInt(st.nextToken());
			if (a<b && b<c) System.out.println("Yes");
			else System.out.println("No");
		} String buf = br.readLine(); buf br.readLine() br.readLine br StringTokenizer st = new StringTokenizer(buf); st new StringTokenizer(buf) int a = Integer.parseInt(st.nextToken()); a Integer.parseInt(st.nextToken()) Integer.parseInt Integer st.nextToken() st.nextToken st int b = Integer.parseInt(st.nextToken()); b Integer.parseInt(st.nextToken()) Integer.parseInt Integer st.nextToken() st.nextToken st int c = Integer.parseInt(st.nextToken()); c Integer.parseInt(st.nextToken()) Integer.parseInt Integer st.nextToken() st.nextToken st 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 System.out System System.out "Yes" System.out.println("No") System.out.println System.out System System.out "No" String args[] args
import java.io.*;
import java.util.StringTokenizer;

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

		try {
			String buf = br.readLine();
			StringTokenizer st = new StringTokenizer(buf);
			int a = Integer.parseInt(st.nextToken());
			int b = Integer.parseInt(st.nextToken());
			int c = Integer.parseInt(st.nextToken());
			if (a<b && b<c) System.out.println("Yes");
			else System.out.println("No");
		} catch (IOException e) {
			System.out.println("IOException!");
		}
	}
}