using System;

public class Program

{

    public static void Main()

    {

    int pos_min = 0;

int temp = 0;

        int[] allgrades = new int [5] {5,10,15,20,25};

        for (int i = 0; i < allgrades.Length  - 1 ; i++)

        {

            pos_min = i;

            for ( int j = i + 1 ; j < allgrades.Length - 1; i++)

            {

                if (allgrades[j] < allgrades[pos_min])

                {

                pos_min = j;

                }

            }

            if ( pos_min != i)

            {

            temp  = allgrades[i];

            allgrades[i] = allgrades[pos_min];

            allgrades[pos_min = temp;

}

}

            Console.WriteLine(allgrades);

                      }

                      }