using System;

 public  class Program

    {

        public static void Main(string[] args)

        {

            int[] arr = {1, 2, 3, 4, 5, 9, 3, 8,7,9 };

​

            Node<int> list = ArrToList(arr);

            Console.WriteLine(LongestSequence(list));

            //PrintList(list);

​

​

            string q = Console.ReadLine();

        }

​

​

        public static Node<int> ArrToList(int[] arr)

        {

            Node<int> firstNode = new Node<int>(arr[0]);

            Node<int> node = firstNode;

            Node<int> pos = firstNode;

​

            for (int i = 1; i < arr.Length; i++)

            {

                node = new Node<int>(arr[i]);

                pos.SetNext(node);

                pos = pos.GetNext();

            }

            return (firstNode);

        }

​

        public static int LongestSequence(Node<int> firstNode)

        {

            Node<int> pos = firstNode;

            int sequence = 0;

            int maxSequence = 0;

​

            while (pos.HasNext() == true)

            {

                if (pos.GetNext().GetValue() >= pos.GetValue())

                    sequence++;

                else

                {

                    if (sequence > maxSequence)

                        maxSequence = sequence;

                }

                pos = pos.GetNext();

            }

            return (maxSequence);

        }

    }

​

 public class Node<T>

    {

        private T value;

        private Node<T> next;

​

        public Node(T value)

        {

            this.value = value;

            this.next = null;

        }

        public Node(T value, Node<T> next)

        {

            this.value = value;

            this.next = next;

        }

        public T GetValue()

        {

            return this.value;

        }

        public Node<T> GetNext()

        {

            return this.next;

        }

        public bool HasNext()

        {

            return (this.next != null);

        }

        public void SetValue(T value)

        {

            this.value = value;

        }

        public void SetNext(Node<T> next)

        {

            this.next = next;

        }

        public override string ToString()

        {

            return this.value.ToString() + " ";

        }

    }