#include <bits/stdc++.h>

using namespace std;

int nr=0;
vector<int> sol;
string a,b;

void read()
{
    ifstream f("strmatch.in");
    f>>a>>b;
    f.close();
}

void match()
{
    int pos=-1;
    while(1)
    {
        pos=b.find(a,pos+1);
        if(pos==-1) break;
        nr++;
        if(nr<=1000) sol.push_back(pos);
    }

}

void write()
{
    ofstream g("strmatch.out");
    g<<nr<<"\n";
    for(int i=0;i<min(nr,1000);i++) g<<sol[i]<<" ";
    g.close();
}

int main()
{
    read();
    match();
    write();
}