#include <iostream>

int main()
{
    double a = 1.0000001;
    double b = a;
    bool o = false;
    std::cout << a << "   " << b << std::endl;    

    for (long long t = 1; t < 1000000000; t++) {
        if (o) {
            a = a * b;
        } else {
            a = a / b;
        }
        o = !o;
    }
    std::cout << a << std::endl;
    return 0;
}