cd

int key, value;
if (initials == "PUT") {
    size_t space1 = query.find(' ', 4);
    key = std::stoi(query.substr(4, space1 - 4));
    value = std::stoi(query.substr(space1 + 1));
    LFUObject.put(key, value);
} else { // GET query
    key = std::stoi(query.substr(4));
    int getAns = LFUObject.get(key);
    ans.push_back(getAns);
}