import java.util.*;
class Main{
	public static void main(String[]args){
    	Scanner in = new Scanner(System.in);
      	int h = in.nextInt(), n = in.nextInt(),s=0;
      	int[] a = new int[n];
      	for(int i = 0 ; i < n ; i++){
          a[i] = in.nextInt();s+=a[i];}
      	System.out.println((s>=h)?"Yes":"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