import java.util.*;
public class Main {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int h = sc.nextInt();
    int n = sc.nextInt();
    for (int i = 0; i < n;i++) {
      h-=sc.nextInt();
      if (h <= 0) {
        System.out.println("Yes");
        return;
      }
    }
    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