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

using namespace std;

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

string a, b;

int main()
{
	fi>>a>>b;
	
	int p = 0;
	vector<int> pos;
	
	while((p = b.find(a, p)) != string::npos)
	{
		pos.push_back(p);
		p++;
	}
	
	fo<<pos.size()<<'\n';
	for(p = 0;p < (signed)pos.size();p++)
		fo<<pos[p]<<' ';
}