#include <fstream>
#include <cstring>

using namespace std;

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

string P, T;
int ap[1001], nrap;
int main()
{
    in >> P >> T;
    for(int p = T.find(P); p != string::npos; p = T.find(P, p + 1))
    {
        nrap++;
        if(nrap <= 1000)
            ap[nrap] = p;
    }
    out << nrap << '\n';
    nrap = min(nrap, 1000);
    for(int i = 1; i <= nrap; i++)
        out << ap[i] << ' ';
    return 0;
}