void add_singer(int size_of_list_of_singers, Singer ** list_of_singers) {
    Singer *new_singer = (Singer*)malloc(sizeof(Singer));
    read_string(new_singer);
    list_of_singers = (Singer**)realloc(list_of_singers, (size_of_list_of_singers + 1) * sizeof(Singer*));
    list_of_singers[size_of_list_of_singers] = new_singer;
    puts(list_of_singers[size_of_list_of_singers]->name);
}

int main()
{
    Singer **list_of_singers = NULL;
    int size_of_list_of_singers = 0;

    add_singer(size_of_list_of_singers, list_of_singers);
    size_of_list_of_singers++;

    add_singer(size_of_list_of_singers, list_of_singers);
    size_of_list_of_singers++;

    for(int i = 0; i < size_of_list_of_singers; ++i) {
        puts(list_of_singers[i] ->name);
    }


    return 0;
}