
import java.util.Scanner;

public class Main {
    public static void main(String args[]){
        Scanner in= new Scanner(System.in);
        int a = in.nextInt();
        int b = in.nextInt();
        int c = in.nextInt();
	String s;

	if (a < b && b < c)
		s = "Yes";
	else
		s = "No";
        System.out.printf("%s%n", s);
    }   
}
/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