Is there any short way/short this code to do same work?

Question

Here the code that I have create. Tell me the short way if have.
{ start:
int num01;
int num02;
string symble;
string EnC;
string userMail;
string userPass;
Console.WriteLine("Welcome to SheikhAbirBL\nChoose your option Calculator or LoginSystem\nWrite cal for Calculator login for LoginSystem");
EnC = Console.ReadLine();
if (EnC == "cal")
{
goto cal;
}
else if (EnC == "login")
{
goto logIn;
}
else
{
Console.WriteLine("Something went wrong\nPress any key to continue");
Console.ReadKey();
Console.Clear();
goto start;
}

cal:
do
{
Console.WriteLine("Enter your first number ");
num01 = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Input a operetor");
symble = Convert.ToString(Console.ReadLine());
Console.WriteLine("Enter your second number");
num02 = Convert.ToInt32(Console.ReadLine());
if (symble == "*")
{
Console.WriteLine("Result is " + (num01 * num02));
}
else if (symble == "/")
{
Console.WriteLine("Result is " + (num01 / num02));
}
else if (symble == "-")
{
Console.WriteLine("Result is " + (num01 - num02));
}
else if (symble == "+")
{
Console.WriteLine("Result is " + (num01 + num02));
}
else if (symble == "%")
{
Console.WriteLine("Result is " + (num01 % num02));

Answer 1

First off remember this principle once and forever: NEVER use "goto". It is easier and safer to do it with loops.