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();
    int[] num = new int[N];
    int count = 0;
    
    for(int i=0; i<N; i++){
        num[i] = sc.nextInt();
        H -= num[i];
    }
    //if(str.charAt(0) == str.charAt(1)){
    //}
    if(H<=0){
        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