#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
ifstream in("strmatch.in");
ofstream out("strmatch.out");
vector <int> v;
int main()
{
    string a, b;
    in >> a >> b;
    int t = b.find(a);
    int nr = 0;
    while(t != -1)
    {
        v.push_back(t);
        nr ++;
        t = b.find(a, t + 1);
    }
    out << nr << '\n';
    for(int i = 0; i < v.size(); i ++)
    {
        if(i >= 1000)
            return 0;
        out << v[i] << " ";
    }
    return 0;
}