1#include <chrono>
2using std::chrono::high_resolution_clock;
3using std::chrono::microseconds;
4using std::chrono::duration_cast;
5
6auto start = high_resolution_clock::now();
7rd(n);
8auto stop = high_resolution_clock::now();
9auto duration = duration_cast<microseconds>(stop-start);
10std::cout << duration.count() << std::endl;