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

class Main{
    public static void main(String[] args) throws IOException {
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
        String line;
        // ????????\???
        while((line=br.readLine()) != null) {
            // ??\???????????????????§???????????????§????????????
            String[] input = line.split(" ");
            int[] in = new int[input.length];
            
            // ??????????????°????????????
            for(int i = 0; i < input.length; i++) {
                in[i] = Integer.parseInt(input[i]);
            }
            
            // a < b < c ??§Yes???????????\??????No?????¨???
            if(in[0] < in[1] && in[1] < in[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