import java.util.Scanner;

public class Main {
    public static void main(String[]args){
        Scanner sc=new Scanner(System.in);
        int H=sc.nextInt();
        int N=sc.nextInt();
      //  int [] moves=new int[N];
        int sum_of_moves=0;
        for(int i=0;i<N;i++)
           // moves[i]=sc.nextInt();
            sum_of_moves+=sc.nextInt();
        String output=(sum_of_moves>=H)?"Yes":"No";
        System.out.print(output);
    }
}
/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