import java.util.Scanner;

class Main {

	public static void main(String[] args) {

		int a,b,c;

		Scanner stdIn = new Scanner(System.in);

		a = Integer.parseInt(stdIn.next());
		b = Integer.parseInt(stdIn.next());
		c = Integer.parseInt(stdIn.next());

		if(c > b && c > a) {
			if(b > a) {
				System.out.println("Yes");
			} else {
				System.out.println("No");
			}
		} 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