✅ Hey I am a beginner coder and lf some tipps to write clean code.

string[] letters = new string[8];
for (int i = 0; i < letters.Length; i++)
    letters[i] = ((char)(65 + i)).ToString();
for (int i = 8; i > 0; i--)
{
    for (int j = 0; j < letters.Length; j++)
    {
        Console.Write(letters[j] + (i) + " ");    
    }
    Console.WriteLine();
}