#include <iostream>
#include <fstream>
using namespace std;

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

int lps[2000005];
string pat, txt;

void ComputeLps()
{
    int len = 0;
    int i = 1;
    lps[0] = 0;
    while(i < pat.size())
    {
        if(pat[i] == pat[len])
        {
            len++;
            lps[i] = len;
            i++;
        }
        else
        {
            if(len != 0)
            {
                len = lps[len-1];
            }
            else
            {
                lps[i] = 0;
                i++;
            }
        }
    }
}

int main()
{
    fin>>pat>>txt;
    ComputeLps();
    int n = txt.size(), m = pat.size(), i = 0, j = 0;

    fout<<"           \n";
    int nr=0;
    while(i < n)
    {
        if(txt[i] == pat[j])
        {
            i++;
            j++;
        }
        if(j == m)
        {
            if(nr <= 1000)
            {
                nr++;
                fout<<i-j<<' ';
            }
            j = lps[j-1];
        }
        else if(i < n && txt[i] != pat[j])
        {
            if(j != 0)
            {
                j = lps[j-1];
            }
            else
            {
                i++;
            }
        }
    }
    fout.close();
    fout.open("strmatch.out", ios::in | ios::out);
    fout<<min(nr, 1000);
    fin.close();
    fout.close();
    return 0;
}