#include <iostream>
#include <fstream>
#include <string.h>
#include <vector>
#define len 2000001
#define pb push_back

using namespace std;
ifstream in("strmatch.in");
ofstream out("strmatch.out");
vector<int> v;
char s[len], t[len], *ad;
int main()
{
    in >> s >> t;
    if(!strstr(t, s))
    {
        out << 0;
        return 0;
    }
    ad = strstr(t, s);
    v.pb(ad - t);
    while(strstr(ad + 1, s))
    {
        ad = strstr(ad + 1, s);
        v.pb(ad - t);
    }
    out << v.size() << '\n';
    for(int i = 0; i < v.size(); ++i)
        out << v[i] << ' ';
    return 0;
}