#include <iostream>
#include <array>
#include <vector>
class Cube {
 
 public:
 Cube(){}
 Cube(auto _A, auto _B, auto _C): A(_A), B(_B), C(_C){
 }
public:
double EvalVolume(){
    return A * B * C;
}
std::array<double, 3> GetAll(){
    auto tmp {std::array<double, 3>()};
    tmp[0]=A;
    tmp[1]=B;
    tmp[2]=C;
    return tmp;
}
void SetAll(auto _A, auto _B, auto _C){
   A=_A;
   B=_B;
   C=_C;
}
void SetA(double x){
   A=x;
}
void SetB(double x){
   B=x;
}
void SetC(double x){
   C=x;
}
const double& GetA(){
   return A;
}
const double& GetB(){
   return B;
}
const double& GetC(){
   return C;
}
private:
  double A, B, C, Volume;
};