import java.util.Scanner;
public class Main{
    public static void main(String argv[])
    {
	Scanner scan = new Scanner(System.in);

	int num = scan.nextInt();
	int num1 = scan.nextInt();
	int num2 = scan.nextInt();


	if( num < num1 && num1 < num2)

	    System.out.println("Yes");
else
	System.out.println("No");
    }

}
/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