import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        
        Scanner scanner = new Scanner(System.in);
        double H = scanner.nextDouble();
        int N = scanner.nextInt();
        int sum = 0;
        
        for(int i=0; i<N; i++){
            
            int A = scanner.nextInt();
            sum += A;
            
        }
        if(sum>=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