#include <iostream>
#include <fstream>
#include <cstdio>
#include <cstring>
#include <vector>
using namespace std;
vector <int> sol;
string x, y;
ifstream in("strmatch.in");
ofstream out("strmatch.out");

int main()
{
    in >> x;
    in >> y;
    int poz = y.find(x);
    while(poz != -1) {
        sol.push_back(poz);
        poz = y.find(x, poz + 1);
    }
    out << sol.size() << "\n";
    for(int i = 0;i < sol.size() && i < 1000; ++i) {
        out << sol[i] << " ";
    }
    out << "\n";
    return 0;
}