#include <fstream>
using namespace std;
ifstream in("strmatch.in");
ofstream out("strmatch.out");
using namespace std;
int v[2000001];
int main()
{
    int i,act,ct=0;
    string a,b;
    in>>a;
    in>>b;
    act=b.find(a);
    while(act>=0)
    {
      ct++;
      v[ct]=act;
      act=b.find(a,act+1);
    }
    out<<ct<<'\n';
    for(i=1;i<=ct&&i<=1000;i++)
      out<<v[i]<<" ";
    return 0;
}