import java.util.*;
public class Main {
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
    	int[] ary = new int[3];
    	ary[0]=sc.nextInt();
    	ary[1]=sc.nextInt();
    	ary[2]=sc.nextInt();

    	if(ary[0]<ary[1]&&ary[1]<ary[2]){
    		System.out.println("Yes");
    	}else{
    		System.out.println("No");
    	}
    }
}
 import java.util.*; util.* java public class Main {
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
    	int[] ary = new int[3];
    	ary[0]=sc.nextInt();
    	ary[1]=sc.nextInt();
    	ary[2]=sc.nextInt();

    	if(ary[0]<ary[1]&&ary[1]<ary[2]){
    		System.out.println("Yes");
    	}else{
    		System.out.println("No");
    	}
    }
} Main public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
    	int[] ary = new int[3];
    	ary[0]=sc.nextInt();
    	ary[1]=sc.nextInt();
    	ary[2]=sc.nextInt();

    	if(ary[0]<ary[1]&&ary[1]<ary[2]){
    		System.out.println("Yes");
    	}else{
    		System.out.println("No");
    	}
    } main {
    	Scanner sc = new Scanner(System.in);
    	int[] ary = new int[3];
    	ary[0]=sc.nextInt();
    	ary[1]=sc.nextInt();
    	ary[2]=sc.nextInt();

    	if(ary[0]<ary[1]&&ary[1]<ary[2]){
    		System.out.println("Yes");
    	}else{
    		System.out.println("No");
    	}
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int[] ary = new int[3]; ary new int[3] 3 ary[0]=sc.nextInt() ary[0] ary 0 sc.nextInt() sc.nextInt sc ary[1]=sc.nextInt() ary[1] ary 1 sc.nextInt() sc.nextInt sc ary[2]=sc.nextInt() ary[2] ary 2 sc.nextInt() sc.nextInt sc if(ary[0]<ary[1]&&ary[1]<ary[2]){
    		System.out.println("Yes");
    	}else{
    		System.out.println("No");
    	} ary[0]<ary[1]&&ary[1]<ary[2] ary[0]<ary[1] ary[0] ary 0 ary[1] ary 1 ary[1]<ary[2] ary[1] ary 1 ary[2] ary 2 {
    		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 public class Main {
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
    	int[] ary = new int[3];
    	ary[0]=sc.nextInt();
    	ary[1]=sc.nextInt();
    	ary[2]=sc.nextInt();

    	if(ary[0]<ary[1]&&ary[1]<ary[2]){
    		System.out.println("Yes");
    	}else{
    		System.out.println("No");
    	}
    }
} public class Main {
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
    	int[] ary = new int[3];
    	ary[0]=sc.nextInt();
    	ary[1]=sc.nextInt();
    	ary[2]=sc.nextInt();

    	if(ary[0]<ary[1]&&ary[1]<ary[2]){
    		System.out.println("Yes");
    	}else{
    		System.out.println("No");
    	}
    }
} Main
import java.util.*;
public class Main {
    public static void main(String[] args){
    	Scanner sc = new Scanner(System.in);
    	int[] ary = new int[3];
    	ary[0]=sc.nextInt();
    	ary[1]=sc.nextInt();
    	ary[2]=sc.nextInt();

    	if(ary[0]<ary[1]&&ary[1]<ary[2]){
    		System.out.println("Yes");
    	}else{
    		System.out.println("No");
    	}
    }
}

