import java.io.*;
class Main{
    public static void main(String[] args){
        try{
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            String str = br.readLine();
            String[] strArr = str.split(" ");
            int a = Integer.parseInt(strArr[0]);
            int b = Integer.parseInt(strArr[1]);
            int c = Integer.parseInt(strArr[2]);
            if(a < b){
                if(b < c){
                    System.out.println("Yes");
                }else{
                    System.out.println("No");
                }
            }else{
                System.out.println("No");
            }
        }catch(IOException 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