#include <fstream>
#include <string>
#include <vector>

using namespace std;

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

vector <int> sol;
string a,b;

int main()
{
    f>>a>>b;
    int last=0;
    for (int i=0;i<1000;++i){
        last=b.find(a,last);
        if (last==-1)
            break;
        sol.push_back(last);
        ++last;
    }
    t<<sol.size()<<'\n';
    for (auto i:sol)
        t<<i<<" ";
    return 0;
}