std::string bitshiftright(std::string s) {
    std::string res;
    res = s[s.size()-1] + s.substr(0, s.size()-1);
    std::cout << res << std::endl;
    return res;
}

int main() {
    std::string s = "101001";
    for (int i = 0; i<4; i++)
        s = bitshiftright(s);
    std::cout << s << std::endl;
    return 0;
}