import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner 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.close();
    }
} import java.util.Scanner; Scanner java.util public class Main{
    public static void main(String[] args){
        Scanner 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.close();
    }
} Main public static void main(String[] args){
        Scanner 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.close();
    } main {
        Scanner 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.close();
    } Scanner 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" scan.close() scan.close scan String[] args args public class Main{
    public static void main(String[] args){
        Scanner 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.close();
    }
} public class Main{
    public static void main(String[] args){
        Scanner 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.close();
    }
} Main
import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner 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.close();
    }
}
