import java.util.Scanner;
 
class Main{
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
    int H = sc.nextInt();
    int M = sc.nextInt();
    
    int A[] = new int[M];
    int S = 0;
    for(int i = 0;i < M;i++){
        A[i] = sc.nextInt();
        S += A[i];
    }
    if(S >= 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