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();
			Integer A[] = new Integer[N];
			for (int i=0; i<N; i++) {
				A[i] = sc.nextInt();
			}
			int sum = 0;
           for(int i=0; i<N; i++) {
        	   sum += A[i];
           }
		if(H <= sum) {
			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