#define _CRT_SECURE_NO_WARNINGS
#include<iostream>
#include<sstream>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<climits>
#include<cmath>
#include<string>
#include<vector>
#include<set>
#include<map>
#include<queue>
#include<numeric>
#include<functional>
#include<algorithm>
#include<bitset>
#include<tuple>
#include<unordered_set>
#include<unordered_map>
#include<random>
#include<array>
#include<cassert>
using namespace std;
#define INF ((1<<30)-1)
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define all(v) v.begin(),v.end()



bool dp[400000];


int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);

	int n, k;
	string s;

	cin >> n >> k;
	cin >> s;

	int cnt = k;
	for (int i = n - 1; i >= 0; i--) {
		if (cnt > 0 && s[i] == 'o')dp[i] = true;
		else cnt++;

		if (!dp[i + k])cnt--;
	}

	if (dp[0]) {
		rep(i, k + 1) {
			if (!dp[i]) {
				cout << i << endl;
			}
		}
	}
	else {
		cout << 0 << endl;
	}

	
 	return 0;
}