public static void Main()
Console.WriteLine("+----+----+----+----+----+");
Console.WriteLine("| " + 1 * 1 + " | " + 1 * 2 + " | " + 1 * 3 + " | " + 1 * 4 + " | " + 1 * 5 + " |");
Console.WriteLine("+----+----+----+----+----+");
Console.WriteLine("| " + 1 * 2 + " | " + 2 * 2 + " | " + 3 * 2 + " | " + 4 * 2 + " | " + 5 * 2 + " |");
Console.WriteLine("+----+----+----+----+----+");
Console.WriteLine("| " + 1 * 3 + " | " + 3 * 2 + " | " + 3 * 3 + " | " + 4 * 3 + " | " + 5 * 3 + " |");
Console.WriteLine("+----+----+----+----+----+");
Console.WriteLine("| " + 1 * 4 + " | " + 4 * 2 + " | " + 3 * 4 + " | " + 4 * 4 + " | " + 5 * 4 + " |");
Console.WriteLine("+----+----+----+----+----+");
Console.WriteLine("| " + 1 * 5 + " | " + 5 * 2 + " | " + 3 * 5 + " | " + 4 * 5 + " | " + 5 * 5 + " |");
Console.WriteLine("+----+----+----+----+----+");