string problem in C#.net

private void GetFormat()
{
    string str = "2 3 40 300 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 4 30 200 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 2 30 200";
    string[] s4 = str.Split(' ');
    int count = 0;
    foreach (string s2 in s4)
    {
        if (count < 4)
        {
            Console.Write(s2 + "\t");
            count++;
        }
        else
        {
            Console.WriteLine("");
            count = 0;
        }
    }
}

int i=0;
 foreach( var Parts in str.Split(' '))
  {
    Console.Out.writeLine(Parts+" ");
    i++;
    if(i==4)
    {
    Console.Out.WriteLine("");
    i=0;
    }
  }

char[] chArray= str.ToCharArray();
for(int i =0; i< chArray.Length;)
{
Console.Writeline(chArray[i]+" " + chArray[i+1] + " " + chArray[i+1] + " " + chArray[i+1]);
i= i+4;
}

(\d+\s\d+\s\d+\s\d+)*

Private Function GetPages(ByVal input As String) As List(of String)
    Dim output as New List(of String)
    Dim Numbers As String = "(\d+\s\d+\s\d+\s\d+)*"

    For Each Match As Match In Regex.Matches(input, Numbers)
        If Not Match.Value = String.Empty Then
                    output.add(Match.Value)
        End If
    Next

    Return output
End Function