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