#include <fstream>
#include <cstring>
#define nmx 2000002
#define nx 1002
using namespace std;

ifstream f("strmatch.in");
ofstream o("strmatch.out");

char a[nmx],b[nmx];
int af[nx],la,lb,pa,pb,st,q;

int main() {
    f >> a >> b;
    la = strlen(a);
    lb = strlen(b);

    while(pb < lb) {
        q = 0,st = pb;
        pa = 0;
        while(pa < la) {
            if(not q && pa && b[pb] == a[0])
                q = pb;
            if(a[pa] != b[pb]) {
                break;
            }
            ++ pa;
            ++ pb;
        }
        if(af[0] < 1000 && pa == la) {
            af[++af[0]] = st;
        }
        if(q)
            pb = q;
        else
            ++ pb;
    }

    o << af[0] << "\n";
    for(int i = 1; i <= af[0]; ++i)
       o << af[i] << " ";

    return 0;
}