import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int j, H, N, T=0;
        int[] A = new int[100000];
        H = scan.nextInt();
        N = scan.nextInt();
        for(j=0; j<N; j++){
            A[j] = scan.nextInt();
        }
        for(j=0; j<N; j++){
            T = T+A[j];
        }
        if(T>=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