z_function

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>

int main() {
    std::string str, t;
    int s_size, t_size;
    std::cin >> str;
    s_size = str.size();
    std::cin >> t;
    str += '#';
    str += t;

    std::vector<size_t> z(s_size, 0);
    size_t l = 0, r = 0;

    for (size_t i = 1; i < str.size(); ++i) {
        size_t curZ = 0;
        if (i <= r) {
            curZ = std::min(r - i + 1, z[i - l]);
        }
        while (i + curZ < str.size() && str[curZ] == str[i + curZ]) {
            ++curZ;
        }
        if (i + curZ - 1 > r) {
            l = i;
            r = i + curZ - 1;
        }
        if (i < s_size) {
            z[i] = curZ;
        }
        if (i > s_size) {
            if (curZ == s_size) {
                std::cout << i - s_size - 1 << " ";
            }
        }
    }
    std::cout << "\n";
    return 0;
}