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

public class Main {

	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] inputNum = br.readLine().split(" ");

		if(toInt(inputNum[0]) <  toInt(inputNum[1])  && toInt(inputNum[1]) < toInt(inputNum[2])){
			System.out.println("Yes");
		}else {
			System.out.println("No");
		}
	}

	public static int toInt(String stringNum){
		return Integer.parseInt(stringNum);
	}

}
/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