using System;

public class Program

{

    public static void Main()

    {

        Random rnd=new Random();

        int[] arr1=new int[] {7,5,1,2,8,9};

        int[] arr2=new int[] {5,4,3,8};

        int[] arrS=CountSimilerities(arr1,arr2);

        for(int i=0;i<arr1.Length;i++) Console.Write(arr1[i]+" ");

        Console.WriteLine();

        for(int i=0;i<arr2.Length;i++) Console.Write(arr2[i]+" ");

        Console.WriteLine();

        Console.WriteLine("-------");

        for(int i=0;i<arrS.Length;i++)

        {

            if(arrS[i]!=0) Console.Write(arrS[i]+" ");

        } 

    }

    static int[] CountSimilerities(int[] arr1, int[] arr2)

    {

        int[] arrS=new int[Math.Min(arr1.Length, arr2.Length)];

        for(int i=0;i<Math.Min(arr1.Length, arr2.Length);i++)

        {

            for(int j=i+1;j<Math.Max(arr1.Length, arr2.Length);j++)

            {

                if(arr1[j] == arr2[i]) arrS[i]=arr1[j];

            }

        }

        return arrS;

    }

}