#include <iostream>
#include <fstream>
#include <algorithm>
#include <vector>
#include <string>

using namespace std;

int main()
{
    ifstream in("strmatch.in");
    ofstream out("strmatch.out");
    
    string A;
    string B;
    getline(in, A);
    getline(in, B);
    
    int n = 0;
    size_t lenB = B.size();
    size_t lenA = A.size();
    vector<int> pos;
    
    if (lenA != lenB) {
        for (size_t i = 0; i < lenB; i++) {
            if (!B.compare(i, lenA, A)) {
                n++;
                pos.push_back(i);
            }
        }
    } else {
        if (!B.compare(A)) {
            n++;
            pos.push_back(0);
        }
    }
    
    out << n << "\n";
    for (int i = 0; i < n && i < 1000; i++) {
        out << pos[i] << " ";
    }
    out << "\n";
    
    in.close();
    out.close();
    return 0;
}