#include <iostream>
#include <string>
#include <vector>
using namespace std;

#define rep(i, n) for (int i = 0; i < n; i++)

int main()
{
	int n, k;
	string S;
	cin >> n >> k >> S;

	vector<int> T(n);

	int i = 0, j = 0;
	bool flg = false;
	while (!flg)
	{
		while (S[i] != ')' || T[i] != 0)
		{
			i++;
		}
		T[i] = ++j;
		flg = i == n - 1 ? true : false;
		while (T[i] > 0)
		{
			i--;
		}
		T[i] = j;
	}
	int m;
	char mark;
	rep(i, n)
	{
		if (i + 1 == k)
		{
			m = T[i];
			mark = S[i];
		}
	}
	rep(i, n)
	{
		if (T[i] == m && S[i] != mark)
		{
			cout << i + 1 << endl;
		}
	}
}