import java.util.*;
 
import java.io.*;
 
public class Main{

    public static long Combination(long n, long r){
        long A = 1;
        long B = 1;
        for(long i = 0; i < r; i++){
            A = A*(n-i);
            B = B*(r-i);
        }
        if(A == 0) return 0;
        return A/B;
    }

    public static long solve(int i, int j, boolean check, int N, String S){
        if(i == N){
            if(j == 0){
                return 1;
            }else{
                return 0;
            }
        }

        if(j == 0) return 1;

        if(check){
            return Combination(N-i, j)*(long)Math.pow(9, j);
        }else{
            if(S.charAt(i) == '0') return solve(i+1, j, false, N, S);
            long Z = solve(i+1, j, true, N, S);
            long A = solve(i+1, j-1, true, N, S)*(S.charAt(i)-'1');
            long P = solve(i+1, j-1, false, N, S);
            return Z+A+P;
        }


    }
 
	public static void main(String[] $){
		Scanner s = new Scanner(System.in);
        int H = s.nextInt();
        int N = s.nextInt();
        int[] A = new int[N];
        for(int i = 0; i < N; i++){
            A[i] = s.nextInt();
        }
        for(int i = 0; i < N; i++){
            H = H - A[i];
        }
        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