import java.util.Scanner;

class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int health = sc.nextInt();
    int attacks = sc.nextInt();

    int totalAttack = 0;

    for (int i = 0; i < attacks; i++) {
      totalAttack += sc.nextInt();
    }
    if (health > totalAttack)
      System.out.println("No");
    else
      System.out.println("Yes");
  }
}
/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