
import java.util.Scanner;

public class Main {

	private static Scanner scanner;

	public static void main(String[] args) {
		scanner = new Scanner(System.in);

		int a = scanner.nextInt();
		int b = scanner.nextInt();
		int c = scanner.nextInt();

		while(a < 0 || a > 100);
		while(b < 0 || b > 100);
		while(c < 0 || c > 100);
		if(a < b && b < c) {
			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