#include <iostream>
#include <iomanip>

using namespace std;

int main() {
    float aNum{8.0};
    float bNum{8.0f};

    float bigNum{3.12E15};
    float smallNum{3.12E-23};
    float i{0.1};

    cout << fixed;
    cout << bigNum  << endl;

    cout << "i = " << setprecision(20) << i << endl;



    return 0;
}