#include <iostream>
#include <ctime>
#include <algorithm>

int main()
{
    std::time_t start = std::clock();
    for(int i = 0; i < 1000000; ++i)
        std::string s = std::to_string(i);
    std::cout << (std::clock() - start) / double(CLOCKS_PER_SEC);
}