import java.util.*;

public class Main{
	static public void main(String[] args){
		Scanner sc=new Scanner(System.in);
		int a=sc.nextInt();
		int b=sc.nextInt();
		int c=sc.nextInt();
		isRange(a,b,c);
	}

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

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

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

	static public void isRange(int a,int b,int c){
		if(a<b && b<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	}
} Main
import java.util.*;

public class Main{
	static public void main(String[] args){
		Scanner sc=new Scanner(System.in);
		int a=sc.nextInt();
		int b=sc.nextInt();
		int c=sc.nextInt();
		isRange(a,b,c);
	}

	static public void isRange(int a,int b,int c){
		if(a<b && b<c){
			System.out.println("Yes");
		}else{
			System.out.println("No");
		}
	}
}
