#include<iostream>
using namespace std;
int N,K;
string s;
int ok[2<<17];
main()
{
	cin>>N>>K>>s;
	int cnt=0;
	for(int i=N-1;i>=0;i--)
	{
		if(i>0&&s[i-1]=='x')ok[i]=0;
		else
		{
			ok[i]=cnt>0?1:-1;
			if(ok[i]<0)cnt++;
		}
		if(i+K<N&&ok[i+K]<0)cnt--;
	}
	if(ok[0]<0)cout<<0<<endl;
	else for(int i=1;i<=K;i++)if(ok[i]<0)cout<<i<<endl;
}