import java.util.Scanner;
class Main{
    Scanner sc = new Scanner(System.in);
	
	int a;
	int b;
	int c;
	
	void bc2(){
		a = sc.nextInt();
	    b = sc.nextInt();
		c = sc.nextInt();
		
		if(a<b && b<c && a<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	}

	public static void main(String[]agrs){
			new Main().bc2();
	}
} import java.util.Scanner; Scanner java.util class Main{
    Scanner sc = new Scanner(System.in);
	
	int a;
	int b;
	int c;
	
	void bc2(){
		a = sc.nextInt();
	    b = sc.nextInt();
		c = sc.nextInt();
		
		if(a<b && b<c && a<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	}

	public static void main(String[]agrs){
			new Main().bc2();
	}
} Main Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a; a int b; b int c; c void bc2(){
		a = sc.nextInt();
	    b = sc.nextInt();
		c = sc.nextInt();
		
		if(a<b && b<c && a<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	} bc2 {
		a = sc.nextInt();
	    b = sc.nextInt();
		c = sc.nextInt();
		
		if(a<b && b<c && a<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	} a = sc.nextInt() a sc.nextInt() sc.nextInt sc b = sc.nextInt() b sc.nextInt() sc.nextInt sc c = sc.nextInt() c sc.nextInt() sc.nextInt sc if(a<b && b<c && a<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		} a<b && b<c && a<c a<b && b<c && a<c a<b a b b<c b c a<c a 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" public static void main(String[]agrs){
			new Main().bc2();
	} main {
			new Main().bc2();
	} new Main().bc2() new Main().bc2 new Main() String[]agrs agrs
import java.util.Scanner;
class Main{
    Scanner sc = new Scanner(System.in);
	
	int a;
	int b;
	int c;
	
	void bc2(){
		a = sc.nextInt();
	    b = sc.nextInt();
		c = sc.nextInt();
		
		if(a<b && b<c && a<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	}

	public static void main(String[]agrs){
			new Main().bc2();
	}
}