#include <stdio.h>
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf 10000000

int main(){
	
	int N,K;
	cin>>N>>K;
	
	string S;
	cin>>S;
	
	vector<int> dp(N+1,0);
	dp[N] = 1;
	int sum = 0;
	for(int i=N-1;i>=0;i--){
		if(i+K+1<=N){
			if(dp[i+K+1]==0)sum--;
		}
		if(i!=0 && S[i-1]=='x'){
			dp[i] = 1;
		}
		else{
			if(sum!=0){
				dp[i] = 1;
			}
			else{
				dp[i] = 0;
				sum++;
			}
		}
	}
	
	if(dp[0]!=1){
		cout<<0<<endl;
	}
	else{
		for(int i=1;i<=K;i++){
			if(dp[i]==0){
				cout<<i<<endl;
			}
		}
	}
	
    return 0;
}