//ITP1_2_B:   Range
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main {

	public static void main(String[] args) throws IOException {

		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

		String[] abc = in.readLine().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 class Main {

	public static void main(String[] args) throws IOException {

		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

		String[] abc = in.readLine().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 {

		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

		String[] abc = in.readLine().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 {

		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

		String[] abc = in.readLine().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 in = new BufferedReader(new InputStreamReader(System.in)); in new BufferedReader(new InputStreamReader(System.in)) String[] abc = in.readLine().split(" "); abc in.readLine().split(" ") in.readLine().split in.readLine() in.readLine in " " 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
//ITP1_2_B:   Range
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

class Main {

	public static void main(String[] args) throws IOException {

		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));

		String[] abc = in.readLine().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");
		}

	}
}