#include <fstream>
#include <cstring>

using namespace std;

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

const int DIM = 2000001;
int cnt;

char s[DIM], p[DIM];
int poz[1001];
int k;

int main()
{
    fin.getline(s, DIM);
    fin.getline(p, DIM);

    char *a = strstr(p, s);
    while (a != NULL)
    {
        cnt++;
        poz[k] = a - p;
        k++;
        a = strstr(a + 1, s);
    }
    fout << cnt << '\n';
    for ( int i = 0; i < k; ++i )
        fout << poz[i] << ' ';


    fin.close();
    fout.close();
    return 0;
}