#include <bits/stdc++.h>
using namespace std;

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

///memoria de date
char a[2000001],*p;
int i,nr,poz,sters;

int main()
{
    ///memoria stiva
    int potrivire[1001];
    char b[2000001];
    f>>a>>b;
    while(strstr(b+i,a))
    {
        p=strstr(b+i,a);
        poz=p-b;
        nr++;
        if(nr<=1000) potrivire[nr]=poz;
        i=poz+1;
    }
    g<<nr<<'\n';
    int nr1=min(nr,1000);
    for(i=1;i<=nr1;i++)
        g<<potrivire[i]<<' ';
    return 0;
}