
import java.io.BufferedReader;
import java.io.InputStreamReader;


public class Main {

	public static void main(String[] args) {
		try {
			BufferedReader br = new BufferedReader(new InputStreamReader(
					System.in));

			String[] strs = (String[]) br.readLine().split(" ");
			int num1 = Integer.parseInt(strs[0]);
			int num2 = Integer.parseInt(strs[1]);
			int num3 = Integer.parseInt(strs[2]);

			if (num1 < num2 && num2< num3) {
				System.out.println("Yes");
			} else {
				System.out.println("No");
			}
		} catch (Exception e) {
			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