import java.util.Scanner;

class Main{
    public static void main(String[] args) {
        int H,N,A=0;
        Scanner sc=new Scanner(System.in);
        H=sc.nextInt();
        N=sc.nextInt();
        for(int i=0;i<N;i++){
            A+=sc.nextInt();
        }
        if(H<=A)
        System.out.print("Yes");
        else
        System.out.print("No");
        sc.close();
    }
}
/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