public static void Main()
Console.WriteLine("Welcome To The Times Table Generator!");
Console.WriteLine("Please enter in the Size of the table:");
tableSize = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Error: Input must be a valid integer.");
Console.Write(("X").ToString().PadLeft(5));
for (int i = 1; i <= tableSize; i++)
Console.Write(( i ).ToString().PadLeft(5));
Console.WriteLine(new string ('_', (tableSize + 1) * 5));
for (int i = 1; i <= tableSize; i++)
Console.Write((i + "|").ToString().PadLeft(5));
for (int j = 1; j <= tableSize; j++)
Console.Write((i * j).ToString().PadLeft(5));