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

using namespace std;

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

int urm[67];
string A, B;
vector<int> sol;
int nr_sol=0, i, j;

int valoare(char c)
{
    if (c>='A' && c<='Z') return c-'A';
    if (c>='a' && c<='z') return 'z'-'a'+c-'a';
    return 2*('z'-'a')+c-'0';
}

void Preprop(string A, int lgA)
{
    for (int i=lgA-2; i>0; --i)
        if (!urm[valoare(A[i])])
        {
            urm[valoare(A[i])]=lgA-i-1;
        }
}

int main()
{
    f>>A>>B;

    int lgA=A.length(), lgB=B.length();

    Preprop(A, lgA);

    i=j=lgA-1;
    while (i!=lgB)
    {
        if (A[j]==B[i])
        {
            --i; --j;
            if (!j)
            {
                ++nr_sol;
                if (sol.size()<1000) sol.push_back(i);
            }
        }
        else
        {
            if (urm[valoare(A[j])]<lgA-j)
            {
                i=i+lgA-j;
            }
            else
            {
                i=i+urm[i];
            }
            j=lgA-1;
        }
    }

    g<<nr_sol<<"\n";
    for (int i=0; i<sol.size(); ++i) g<<sol[i]<<" ";
    g<<"\n";

    f.close();
    g.close();
    return 0;
}