#include <string>
#include <fstream>
#include <vector>

using namespace std;

ifstream in("strmatch.in");
ofstream out("strmatch.out");

string a, b;

int main()
{
	in >> a >> b;

	int p = 0;
	vector<int> pos;

	while( (p = b.find(a, p)) != string::npos )
	{
		pos.push_back(p);
		p++;
	}

	out << pos.size() << '\n';
	for(p = 0; p < (signed)pos.size(); p++)
		out << pos[p] <<' ';
}