How to do this dynamical. Then I can put the value of myself

Question

class Program

{

static void Main(string[] args)

{

Stack Stack = new Stack();

string[] expression = { "10", "1","2","+","2","+","5","+", "+" };

for (int i = 0; i < expression.Length; i++)

{

Console.Write(expression[i]);

}

int result;

Console.WriteLine();

int n;

foreach (string c in expression)

{

if (int.TryParse(c, out n))

{

Stack.Push(n);

}

if (c == "+")

{

int x = Convert.ToInt32(Stack.Pop());

int y = Convert.ToInt32(Stack.Pop());

result = x + y;

Stack.Push(result);

}

if (c == "-")

{

int x = Convert.ToInt32(Stack.Pop());

int y = Convert.ToInt32(Stack.Pop());

result = y - x;

Stack.Push(result);

}

if (c == "*")

{

int x = Convert.ToInt32(Stack.Pop());

int y = Convert.ToInt32(Stack.Pop());

result = x * y;

Stack.Push(result);

}

if (c == "/")

{

int x = Convert.ToInt32(Stack.Pop());

int y = Convert.ToInt32(Stack.Pop());

result = y / x;

Stack.Push(result);

}

}

Console.WriteLine("enter any postfix expression");

Console.WriteLine("result of expression: {0}", Stack.Peek());

Console.ReadLine();

}

}