import java.util.InputMismatchException;
import java.util.Scanner;

class Main {
    public static void main(String[] args) {
	Scanner scan = null;
	try {
		scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if ((a < b) && (b < c)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} catch (InputMismatchException e) {
		System.out.println("??????????????????????????????");
	} finally {
		scan.close();
	}
    }
} import java.util.InputMismatchException; InputMismatchException java.util import java.util.Scanner; Scanner java.util class Main {
    public static void main(String[] args) {
	Scanner scan = null;
	try {
		scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if ((a < b) && (b < c)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} catch (InputMismatchException e) {
		System.out.println("??????????????????????????????");
	} finally {
		scan.close();
	}
    }
} Main public static void main(String[] args) {
	Scanner scan = null;
	try {
		scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if ((a < b) && (b < c)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} catch (InputMismatchException e) {
		System.out.println("??????????????????????????????");
	} finally {
		scan.close();
	}
    } main {
	Scanner scan = null;
	try {
		scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if ((a < b) && (b < c)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} catch (InputMismatchException e) {
		System.out.println("??????????????????????????????");
	} finally {
		scan.close();
	}
    } Scanner scan = null; scan null try {
		scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if ((a < b) && (b < c)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} catch (InputMismatchException e) {
		System.out.println("??????????????????????????????");
	} finally {
		scan.close();
	} catch (InputMismatchException e) {
		System.out.println("??????????????????????????????");
	} InputMismatchException e {
		System.out.println("??????????????????????????????");
	} System.out.println("??????????????????????????????") System.out.println System.out System System.out "??????????????????????????????" {
		scan.close();
	} scan.close() scan.close scan {
		scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if ((a < b) && (b < c)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} scan = new Scanner(System.in) scan new Scanner(System.in) int a = scan.nextInt(); a scan.nextInt() scan.nextInt scan int b = scan.nextInt(); b scan.nextInt() scan.nextInt scan int c = scan.nextInt(); c scan.nextInt() scan.nextInt scan 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.util.InputMismatchException;
import java.util.Scanner;

class Main {
    public static void main(String[] args) {
	Scanner scan = null;
	try {
		scan = new Scanner(System.in);
		int a = scan.nextInt();
		int b = scan.nextInt();
		int c = scan.nextInt();
		if ((a < b) && (b < c)) {
			System.out.println("Yes");
		} else {
			System.out.println("No");
		}
	} catch (InputMismatchException e) {
		System.out.println("??????????????????????????????");
	} finally {
		scan.close();
	}
    }
}