#include<fstream>
using namespace std;

ifstream cin("strmatch.in");
ofstream cout("strmatch.out");

int s[2000001];

int main(){
    int poz=0,aux=0;
    string a,b;
    cin>>a>>b;
    while((poz=b.find(a,poz)+1)){
        s[aux]=poz-1;aux++;
    }cout<<aux<<"\n";
    while(poz<aux && poz<1000){
        cout<<s[poz]<<" ";
        poz++;
    }
    return 0;
}