#include <fstream>
#include <cctype>
#include <cstring>
#include <cstdlib>
using namespace std;
ifstream in("strmatch.in");
ofstream out("strmatch.out");
const int NMAX=2000005;
char a[NMAX],b[NMAX];
int v[2000005];
int main()
{
    char *p;
    int i,cnt=0;
    in.getline(a,NMAX);
    in.getline(b,NMAX);
    p=strstr(b,a);
    while(p)
    {
        v[++v[0]]=p-b;
        p=strstr(p+1,a);
    }
    out<<v[0]<<'\n';
    if(v[0]>1000)
        v[0]=1000;
    for(i=1;i<=v[0];i++)
        out<<v[i]<<" ";
    return 0;
}