#include <fstream>
#include <cstring>
#include <vector>
#define len 2000010
#define pb push_back

using namespace std;

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

vector<unsigned> v;

char s[len], t[len], *p;
unsigned cont, pos;

int main()
{
    in >> s >> t;
    p = strstr(t, s);
    while(p != '\0')
    {
        pos = p - t;
        if(cont <= 1000)
            v.pb(pos);
        ++cont;
        p = strstr(t + pos + 1, s);
    }
    out << cont << '\n';
    for(auto i : v)
        out << i << ' ';
    return 0;
}