#include <iostream>
#include <fstream>
#include <cstring>
#define Nmax 2000005

using namespace std;

ifstream f("strmatch.in");
ofstream g("strmatch.out");

string a, b;
int p;
int n, s[1<<23];

int main()
{
    f >> a >> b;
    while(p=b.find(a,p)+1)
        s[n++]=p-1;
    g << n << '\n';
    while(p<n && p<1000)
    g << s[p++]<<' ';
    return 0;
}