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