#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
ifstream in("strmatch.in");
ofstream out("strmatch.out");
vector <int> res;
int main()
{
    string a, b;
    in >> a;
    in >> b;
    int loc = b.find(a);
    while( loc != -1 )
    {
        res.push_back( loc );
        loc = b.find( a, loc + 1 );
    }
    out << res.size() << "\n";
    for( int i = 0; i < res.size() && i < 1000; ++i )
        out << res[i] << " ";
    return 0;
}