#include <bits/stdc++.h>
#include <cstring>
# define pb push_back
#define nmax 50005
using namespace std;
ifstream f("strmatch.in");
ofstream g("strmatch.out");
string a,b;
int ok,k,i;
vector <int>v;
int main()
{size_t found;
f>>a>>b;
found=-1;

ok=1;
while(ok)
{
    found=b.find(a,found+1);
    if(found!=string::npos)
    {
        k++;
        v.pb(found);
    }
    else
        ok=0;
}

g<<k<<"\n";
if(v.size()>1000)
    k=999;
else
    k=v.size();
for(i=0;i<k;i++)
    g<<v[i]<<" ";



    return 0;
}