#include <iostream>
#include <unordered_set>
#include <string>

int main() {

    std::unordered_set<std::string> tle_members = {"Hridoy", "Kamonasish", "Nayem", "Wasim", "Muzammal", "Shakib", "Mahfuz", "Shahadat"};


    int total_members = tle_members.size();

    std::cout << total_members << std::endl;

    return 0;
}