using System;

public class Program

{

    public static void Main()

    {

    int[] arr1 = new int [20];

    int[] arr2 = new int [20];

        int s2,mm=1,ctr=0;

        int i,j;

        int s1 = 20;

                for(i=0;i<s1;i++)

        {

        Console.Write("Elemento - {0}:",i);

        arr1[i]=Convert.ToInt32(Console.ReadLine());

        }

        foreach(int hi in arr1)

        {

        for(int h = 0; h

        if(hi<11)

        {

        }

        }

    }

}

/*int[] a = {10,20,30,10,20,40};

        int count = 0;

        foreach(int aa in  a)

        if (a[0] == aa - a[0])

        {

            count++;

        }

        foreach(int aa in  a)

        if (a[1] == aa - a[1])

        {

            count++;

        }

        foreach(int aa in  a)

        if (a[2] == aa - a[2])

        {

            count++;

        }

        foreach(int aa in  a)

        if (a[3] == aa - a[3])

        {

            count++;

        }foreach(int aa in  a)

        if (a[4] == aa - a[4])

        {

            count++;

        }

        foreach(int aa in  a)

        if (a[5] == aa - a[5])

        {

            count++;

        }

        Console.WriteLine(count);*/

            /*Array.Sort(exe);

            foreach( int a in exe)

            {

                //int k = exe.Min();

                Console.WriteLine(a);

            }*/

/*int[] a = {3,2,0,5,-1,4,1};

        int t;

        foreach ( int aa in a)

            Console.Write(aa+" ");

        for (int p = 0; p <= a.Length - 2; p++)

        {

        for (int i = 0; i <= a.Length - 2; i++)

        {

            if(a[i]>a[i+1])

            {

                t = a[i+1];

                a[i+1]=a[i];

                a[i]=t;

            }

        }

        }

        Console.WriteLine("Exit:");

        foreach (int aa in a)

            Console.Write(aa+" ");

        Console.ReadLine();*/

        /*int[] arr1 = new int [100];

        int[] arr2 = new int [100];

        int[] arr3 = new int [100];

        int s1,s2,mm=1,ctr=0;

        int i,j;

        Console.WriteLine("Write num of element:");

        s1= Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Escrever {0} elementos no array",s1);

        for(i=0;i<s1;i++)

        {

        Console.Write("Elemento - {0}:",i);

            arr1[i]=Convert.ToInt32(Console.ReadLine());

        }

        for(i=0;i<s1;i++)

        {

            arr2[i]=arr1[i];

            arr3[i]=0;

        }

        for(i=0;i<s1;i++)

        {

            for(j=0;j<s1;j++)

        {

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

                  {

                   arr3[j]=mm;

                      mm++;

                  }

        }

    mm=1;

        }

        for(i=0;i<s1;i++)

        {

            if(arr3[i]==2)

                ctr++;

        }

        Console.WriteLine("The num is {0}",ctr);

        Console.ReadLine();*/