#include <bits/stdc++.h>

using namespace std;
ifstream in("strmatch.in");
ofstream out("strmatch.out");
int v[2000005];
int main()
{
    int cnt=0,aci,i;
    string x,y;
    in>>x>>y;
    aci=y.find(x);
    out<<aci<<'\n';
    while(aci>=0)
    {
        cnt++;
        v[cnt]=aci;
        aci=y.find(x,aci+1);
    }
    for(i=1;i<=cnt&&i<=1000;++i)
        out<<v[i]<<" ";
}