NameOutput

internal class Program
{
    static void Main(string[] args)
    {
        string? name;
        char symbol;
        string? symbolLine = "";
        string secondLine;

        Console.Write("Введите имя: ");
        name = Console.ReadLine();
        Console.Write("Введите символ: ");
        symbol = Convert.ToChar(Console.Read());
        secondLine = symbol + name + symbol;

        for(int i = 0; i < secondLine.Length; i++)
        {
            symbolLine += symbol;
        }
        Console.WriteLine(symbolLine);
        Console.WriteLine(secondLine);
        Console.WriteLine(symbolLine);
    }
}