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

ifstream fin ("aib.in");
ofstream fout ("aib.out");

int ans[1010],k,i,poz;
string a,b;

int main ()
{
    size_t x = string::npos;

    fin>>a>>b;
    poz = -1;
    do
    {
        poz = b.find( a , poz + 1 );
        if( poz != x )
        {
            ++k;
            if( k <= 1000 )
            ans[ k ] = poz;
        }
    }while( poz != x );

    fout<<k<<'\n';
    for( i = 1 ; i <= min( 1000 , k ) ; i++ )
        fout<<ans[ i ]<<' ';

    return 0;

}