#include<iostream>

int main()
{
    std::cout << __cplusplus << '\\n';
    if (__cplusplus == 201703L) std::cout << "C++17\\n";
    else if (__cplusplus == 202002L) std::cout << "C++20\\n";
    else if (__cplusplus == 201402L) std::cout << "C++14\\n";
    else if (__cplusplus == 201103L) std::cout << "C++11\\n";
    else if (__cplusplus == 199711L) std::cout << "C++98\\n";
    else std::cout << "pre-standard C++\\n";
}