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

class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String strThreeNum = br.readLine();
		Integer a = Integer.parseInt(strThreeNum.split(" ")[0]);
		Integer b = Integer.parseInt(strThreeNum.split(" ")[1]);
		Integer c = Integer.parseInt(strThreeNum.split(" ")[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 class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String strThreeNum = br.readLine();
		Integer a = Integer.parseInt(strThreeNum.split(" ")[0]);
		Integer b = Integer.parseInt(strThreeNum.split(" ")[1]);
		Integer c = Integer.parseInt(strThreeNum.split(" ")[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 strThreeNum = br.readLine();
		Integer a = Integer.parseInt(strThreeNum.split(" ")[0]);
		Integer b = Integer.parseInt(strThreeNum.split(" ")[1]);
		Integer c = Integer.parseInt(strThreeNum.split(" ")[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 strThreeNum = br.readLine();
		Integer a = Integer.parseInt(strThreeNum.split(" ")[0]);
		Integer b = Integer.parseInt(strThreeNum.split(" ")[1]);
		Integer c = Integer.parseInt(strThreeNum.split(" ")[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 strThreeNum = br.readLine(); strThreeNum br.readLine() br.readLine br Integer a = Integer.parseInt(strThreeNum.split(" ")[0]); a Integer.parseInt(strThreeNum.split(" ")[0]) Integer.parseInt Integer strThreeNum.split(" ")[0] strThreeNum.split(" ") strThreeNum.split strThreeNum " " 0 Integer b = Integer.parseInt(strThreeNum.split(" ")[1]); b Integer.parseInt(strThreeNum.split(" ")[1]) Integer.parseInt Integer strThreeNum.split(" ")[1] strThreeNum.split(" ") strThreeNum.split strThreeNum " " 1 Integer c = Integer.parseInt(strThreeNum.split(" ")[2]); c Integer.parseInt(strThreeNum.split(" ")[2]) Integer.parseInt Integer strThreeNum.split(" ")[2] strThreeNum.split(" ") strThreeNum.split strThreeNum " " 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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String strThreeNum = br.readLine();
		Integer a = Integer.parseInt(strThreeNum.split(" ")[0]);
		Integer b = Integer.parseInt(strThreeNum.split(" ")[1]);
		Integer c = Integer.parseInt(strThreeNum.split(" ")[2]);
		if (a < b && b < c) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	}

}