import java.util.Scanner;

class Main
{
    public static void main(String args[])
    {
        Scanner s = new Scanner(System.in);
        int h = s.nextInt();
        int n = s.nextInt();
        int sum = 0;
        for(int i=0; i<n; i++)
        {
            sum += s.nextInt();
        }
        if((h-sum)>0)
        {
            System.out.println("No");
        }
        else
        {
            System.out.println("Yes");
        }
    }
}
/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