#include <fstream>
#include <cstring>
using namespace std;
ifstream in("strmatch.in");
ofstream out("strmatch.out");
char a[400001],b[400001];
int v[2000006];
int cnt;
int nrap(int i1)
{
    char *p;
    p=strstr(b+i1,a+1);
    if(p==nullptr||i1>strlen(b+1))
        return 0;
    else {cnt++;
    v[cnt]=p-b;
            return 1+nrap(p-b+1);}
}
int main()
{
    int n,i;
    in>>(a+1)>>(b+1);
    out<<nrap(1)<<'\n';
    for(i=1;i<=cnt;i++)
        out<<v[i]-1<<" ";
    return 0;
}