public class Main {
	public static void main(String[] age){
		String input = new java.util.Scanner(System.in).nextLine();
		String[] arrayinput = input.split(" ");
		int a = Integer.parseInt(arrayinput[0]);
		int b = Integer.parseInt(arrayinput[1]);
		int c = Integer.parseInt(arrayinput[2]);
		int z=0;
		if(a<b) z++;
		if(b<c) z++;
		if(z == 2){
			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