#include <fstream>
    #include <string.h>
    #define mini(a, b) ((a < b) ? a : b)
    using namespace std;

    char STR[2000000];
    char CMP[2000000];
    int megold[2000000];
    int eltol;
    int M,N;
    int q;

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


        void beolvas(){
            in >> CMP >> STR;
            M = strlen(CMP);
            N = strlen(STR);
        }

        int main(){
            beolvas();
            for(int i = 0;i<N;i++){
                for(int j = 0;j<M;j++){
                    if(STR[j] != CMP[j]){
                        break;
                    }else if(j == strlen(CMP)-1){
                        megold[q] = (i+eltol)/2;
                        q++;
                    }
                }
                for(int j = 0;j<strlen(STR);j++){
                    STR[j] = STR[j+1];
                }
                eltol++;

            }
                out << q << endl;
            for(int i = 0;i<mini(q,1000);i++){
                out << megold[i] << " ";
            }

        }