#include <iostream>
#include <fstream>
using namespace std;
string A, B;
int cnt, v[1001];
ifstream fin ("strmatch.in");
ofstream fout ("strmatch.out");

int main()
{
    fin >> A;
    fin >> B;
    int i = 0;
    while (i < B.size()){
        if (B.find(A, i) <= B.size() && cnt <= 1000){
            v[cnt]=B.find(A, i);
            i=B.find(A,i)-1+A.size();
            cnt++;
        }
        else
            i++;
    }
    fout << cnt <<'\n';
    for (i = 0; i < cnt; i++)
        fout << v[i] <<" ";
    return 0;
}