#include <fstream>
#include <cstring>
#define DIM 2000001
using namespace std;
ifstream fin("strmatch.in");
ofstream fout("strmatch.out");
char A[DIM], B[DIM];
int sol[1001];
int a, b, ok, i, nr, n, m, aux;
int main () {
    fin>>A>>B;
    a=strlen(A+1);
    b=strlen(B+1);
    for (i=1;i+a-1<=b;i++) {
        ok=1;
        m=i;
        for(n= 1; n<=a; n++) {
            if(A[n]!=B[m]) {
                ok = 0;
                break;
            }
            m++;
        }
        if(ok == 1) {
            nr++;
            if (nr <= 1000)
                sol[nr] = i-1;
        }
    }
    fout<<nr<<"\n";
    aux=min(nr, 1000);
    for (i=1;i<=aux;i++)
        fout<<sol[i]<<" ";
}