#include<bits/stdc++.h>
#define NMAX 200007
using namespace std;

//FILE* in=fopen("probleme.in", "r");
//FILE* out=fopen("probleme.out", "w");
ifstream in("strmatch.in");
ofstream out("strmatch.out");
int v[NMAX], ct;

int main()
{
    string A, B;
    in>>A>>B;

    unsigned int pos=0;
    while(pos<B.length())
    {
        if(B.find(A, pos)==string::npos) break;
        pos=B.find(A, pos);
        ++ct;
        v[ct]=pos;
        ++pos;
    }
    out<<ct<<'\n';
    for(int i=1; i<=ct; ++i)
    {
        out<<v[i]<<' ';
    }
}