#include <iostream>
#include <string>

#include <cstdio>

using namespace std;

const int MAX = 1000;

const int L = 2000000;

int ans[MAX];
char s[L + 1];

std::string s1, s2;

int main() {



    freopen("strmatch.in", "r", stdin);
    freopen("strmatch.out", "w", stdout);


    scanf("%s\n", s);
    s2 = s;
    scanf("%s", s);
    s1 = s;

    //scanf("%s",s2);


    int c = 0;

    int f = -1;

    int k = 0;

    while(true) {

        f = s1.find(s2, f + 1);

        if(f == string::npos)
            break;

        c++;

        if(c <= MAX)

            ans[k++] = f;
    }

    cout << c << endl;

    for(int i = 0; i < k; i++)
        cout << ans[i] << " ";

    return 0;
}