#include <iostream>
int main()
{
double n;
std::cout << "N = ";
std::cin >> n;
std::cout << "V = " << n*n*n << std::endl;
return 0;
}
#include <iostream>
int main()
{
double n;
std::cout << "N = ";
std::cin >> n;
std::cout << "V = " << n*n*n << std::endl;
return 0;
}