#include <cstdio>
#include <iostream>
#include <chrono>
int main()
{
typedef std::chrono::high_resolution_clock Clock;
typedef std::chrono::milliseconds Milliseconds;
auto res = std::chrono::duration_cast<Milliseconds>(Clock::now().time_since_epoch()).count();
printf("garbage %lu\n", res); // garbage
printf("epoch printf %llu\n", res);
std::cout << "epoch cout " << res << '\n';
}
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