#include <fstream>
#include <string>
#include <vector>
using namespace std;
ifstream f("strmatch.in");
ofstream g("strmatch.out");

string a, b;
int pos, n;
vector<int> x;
int main()
{
    f >> a >> b;
    pos = 0;
    pos = b.find(a, pos);
    while (pos != -1)
    {
        x.push_back(pos);
        pos = b.find(a, pos+1);
    }
    g << x.size() << "\n";
    for (vector<int>::iterator i=x.begin(); i<x.end(); i++)
        g << *i << " ";
}