import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner scanner=new Scanner(System.in);
		int min=scanner.nextInt();
		int midium=scanner.nextInt();
		int max=scanner.nextInt();
		if(min<midium&&midium<max){
			System.out.println("Yes");
		}else
		{
			System.out.println("No");
		}
		
		scanner.close();
	}

}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz