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

public class Main {
    public static void main(String[] args) {
        PrintWriter pw = new PrintWriter(System.out);
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String read1 = null;
        String read2 = null;
        try {
            read1 = br.readLine();
            read2 = br.readLine();
            br.close();
        } catch (IOException e){
            e.printStackTrace();
        }
        String str[] = read1.split(" ", 0);
        String at[] = read2.split(" ", 0);
        int h = Integer.parseInt(str[0]);
        int n = Integer.parseInt(str[1]);
        for (int i = 0; i < n; i++) {
            h = h - Integer.parseInt(at[i]);
        }
        if (h <= 0) {
            pw.println("Yes");
        }else {
            pw.println("No");
        }
        pw.flush();
    }
}
/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