#include <fstream>
#include <cstring>
#define NMAX 2000001
using namespace std;

char A[NMAX],B[NMAX];
int Sol[NMAX];
char *p;
int k;
ifstream f("strmatch.in");
ofstream g("strmatch.out");

int main(){

    f >> A;
    f >> B;
    p = strstr(B,A);
    while(p){
        Sol[++k] = p-B;
        p++;
        p = strstr(p,A);
    }

g << k << '\n';
for(register int i=1;i<=k;++i)
g << Sol[i] << " ";

f.close();
g.close();
return 0;
}