using System;
public class Program
{
  public static int[] SortNumsAscending(int[] arr)
  {
    Array.Sort(arr);
    return arr;
  }
}

#задача #ответ

public class Program 
{
    public static int DivisibleByB(int a, int b) => a + (b - (a % b));
}

using System;
using System.Linq;

public class Program 
{
    public static int getAbsSum(int[] arr) 
    {
        return arr.Select(Math.Abs).Sum();
    }
}

using System.Linq;
public class Program
{
    public static string NameShuffle(string str)
    {
        return string.Join(" ", str.Split(' ').Reverse());
    }
}

public class Program
{
public static int CountDs(string s)
{
return s.Split('D','d').Length - 1;
}
}

using System.Linq;
public class Program
{
  public static int[] MultiplyByLength(int[] arr)
  {
    var multiplier = arr.Length;
    return arr.Select(x => x * multiplier).ToArray();
  }
}

public class Program
{
  public static string RemoveFirstLast(string str)
  {
    return str.Length <= 2 ? str : str.Substring(1, str.Length - 2);
  }
}

public class Program
{
    public static bool SameCase(string str)
    {
        return str==str.ToUpper() | str==str.ToLower();
    }
}

using System.Linq;
public class Program 
{
    public static int CountVowels(string str)
      => str.Count(a=>$"aeiouAEIOU".Contains(a));
}

public class Program
{
  public static string Repetition(string txt, int n)
  {
    return n == 0 ? "" : txt + Repetition(txt, n - 1);
  }
}

public class Program 
{ 
  public static int SumPolygon(int num) => (num - 2) * 180; 
}