using System;
using System.Collections.Generic;
using System.Linq;

namespace _22
{
    class Program
    {
        static void Main(string[] args)
        {
            Stack<int> stack = new Stack<int>();
            int[] x = Console.ReadLine().Split().Select(int.Parse).ToArray();
            string s = Console.ReadLine();
            for (int i = 1; i <= x[0]; i++)
            {
                if (s[i - 1] == '(') stack.Push(i);
                else
                {
                    if (i == x[1]) Console.WriteLine(stack.Peek());
                    else if (stack.Peek() == x[1]) Console.WriteLine(i);
                    stack.Pop();
                }
            }
        }
    }
}