using System;

public class Program

{

    public static void findElement(int[] A2, int[] A1, int n, int m)

    { 

        for (int i = 0; i < n; i++) 

        { 

            int j; 

            for (j = 0; j < m; j++) 

                if (A1[i] == A2[j]) 

                    break; 

            if (j == m) 

                Console.Write(A1[i] + " "); 

        } 

    } 

    public static void Main()

    {

        int[] A1 = {1,25,7, 46};

        int[] A2 = {5, 9, 45, 46};

        int n = A1.Length;

        int m = A2.Length;

        findElement(A1, A2, n, m);

    }

}