#include <bits/stdc++.h>

using namespace std;

ifstream inf("strmatch.in");
ofstream outf("strmatch.out");

string a="*", b="*", c;
int i, la, lb, q, sol, p[2000010];
vector<int> v;
int main()
{
    inf>>c;la=c.size();
    a=a+c;
    a=a+b;
    inf>>c;lb=c.size();
    b=b+c;

    for(i=2; i<=la; i++)
    {
        while(q&&(a[q+1]!=a[i]))q=p[q];
        if(a[q+1]==a[i])
            q++;
        p[i]=q;
    }

    for(i=1,q=0; i<=lb; i++)
    {
        while(q&&(a[q+1]!=b[i]))q=p[q];
        if(a[q+1]==b[i])
            q++;
        if(q==la)
        {
            sol++;
            if(sol<=1000)
                v.push_back(i-la);
        }
    }
    outf<<sol<<'\n';
    for(auto it:v)
        outf<<it<<' ';
    outf<<'\n';
    return 0;
}