#include<bits/stdc++.h>
using namespace std;
int x,p=-1,i;
vector<int>s;
string a,b,z="strmatch.";
int main()
{
    ifstream f(z+"in");
    f>>a>>b;
    while(1)
    {
        p=b.find(a,p+1);
        if(p<0)break;
        x++;
        if(x<1001)s.push_back(p);
    }
    ofstream g(z+"out");
    g<<x<<"\n";
    for(i; i<min(x,1000); i++)g<<s[i]<<" ";
}