import java.util.Scanner;


public class Main {

    
    public static void main(String[] args) {
       Scanner input= new Scanner(System.in);
       int y,n,i,x,sum=0;
       y= input.nextInt();
       n=input.nextInt();
       for(i=0;i<n;i++){
           x=input.nextInt();
           sum=sum+x;
       }
    if(sum>=y){
        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