import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int h = sc.nextInt();
		// スペース区切りの整数の入力
		int n = sc.nextInt();
		int a =0;
      
      	for(int i=0;i<n;i++){
          a = a + sc.nextInt();
        }
     	 // 出力
     	if(a>=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