import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        String s = sc.next();

        int count = 0;
        String[] sp = s.split("");
        List<String> kakko = new ArrayList<>();
        List<Integer> num = new ArrayList<>();
        for (int i = 0; i < n; i++) {
            kakko.add(sp[i]);
            if (kakko.get(i).equals("(")) {
                count++;
                num.add(count);
            } else {
                count--;
                num.add(count);
            }
        }


        if (kakko.get(k-1).equals("(")) {
            for (int i = k-1; i < n; i++) {
                if (num.get(i).equals(num.get(k-1)-1) && kakko.get(i).equals(")")) System.out.println(i+1);
            }
        } else {
            for (int i = 0; i < k-1; i++) {
                if (num.get(i).equals(num.get(k-1)+1) && kakko.get(i).equals("(")) System.out.println(i+1);
            }
        }
    }
}