import java.util.InputMismatchException;
import java.util.Scanner;

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

                try
                    {
                        int inputA = scanner.nextInt();
                        int inputB = scanner.nextInt();
                        int inputC = scanner.nextInt();

                        if (inputA < inputB && inputB < inputC)
                            {
                                System.out.println("Yes");
                            }
                        else
                            {
                                System.out.println("No");
                            }
                    }
                catch (InputMismatchException e)
                    {
                        System.out.println("整数を入力してください");
                        e.printStackTrace();
                    }
            }
    }
/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