#include <iomanip>
#include <iostream>
#include <limits>
using namespace std;

int main() {
    constexpr double inf_dbl = numeric_limits<double>::infinity();
    constexpr double nan_dbl = numeric_limits<double>::quiet_NaN();

    cout << "setprecision(0) showpoint fixed:\n";
    cout << setprecision(0) << showpoint << fixed;

    cout << inf_dbl << "\n";
    cout << -inf_dbl << "\n";
    cout << nan_dbl << "\n";
    cout << -nan_dbl << "\n";

    cout << "\nAnd showpos:\n";
    cout << showpos;

    cout << inf_dbl << "\n";
    cout << -inf_dbl << "\n";
    cout << nan_dbl << "\n";
    cout << -nan_dbl << "\n";
}