#include<fstream>
#include<cstring>
using namespace std;
ifstream f("strmatch.in");
ofstream g("strmatch.out");
char a[2000001],b[2000001];
int n,m,i,fin[2000001],con,j;
int main()
{
    f.getline(a,2000001);
    f.getline(b,2000001);
    n=strlen(a);
    m=strlen(b);
    for(i=0;i<m-n;i++)
    {
        if(b[i]==a[0])
        {
            bool ok=0;
            for(j=i;j<=i+n-1&&ok==0;j++)
              if(b[j]!=a[j-i])
                ok=1;
            if(ok==0)
            {
                con++;
                fin[con]=i;
            }
        }
    }
    g<<con<<"\n";
    for(i=1;i<=con;i++)
      g<<fin[i]<<" ";
    return 0;
}