using System;

using System.Runtime.CompilerServices;

using System.Runtime.InteropServices;

​

namespace Console1;

​

public static class Program

{

    public static void Main()

    {

        string text = "DELICIOUS FOOD";

​

        int cols  = 5;

        int rows  = (text.Length + cols - 1) / cols;

        var array = new char[rows, cols];

        var span  = AsSpan<char>(array); // Create a span that encompasses all the elements of 'array' as a single span.

​

        text.CopyTo(span);                 // Copy the text to the span; this will wrap at the correct places.

        span.Slice(text.Length).Fill('X'); // Fill the remainder of the span with 'X'.

​

        // Print the result.

​

        for (int r = 0; r < rows; ++r)

        {

            for (int c = 0; c < cols; ++c)

            {

                Console.Write(array[r, c]);

            }

​

            Console.WriteLine();

        }

    }

​

    public static Span<T> AsSpan<T>(Array array)

    {

        return MemoryMarshal.CreateSpan(

            ref Unsafe.As<byte, T>(ref MemoryMarshal.GetArrayDataReference(array)),

            array.Length);

    }

}

​