using System;

public class Program

{

    public static int MaxDepth(string s) {

        int depth = 0;

        int curDepth = 0;

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

        {

            curDepth = s[i] == '(' ? curDepth + 1 : s[i] == ')' ? curDepth - 1 : curDepth;

            depth = Math.Max(depth, curDepth);

        }

​

        return depth;

    }

    public static void Main()

    {

        Console.WriteLine("UniLecs");

        // tests

        Console.WriteLine(MaxDepth("(4)+((5))+(((6)))")); // 3

        Console.WriteLine(MaxDepth("(1+(2*3)+((8)/4))+1")); // 3

    }

}