#include <iostream>
using namespace std;
int main()
{
double a,b,c;
cout << "Dati A:";
cin>>a;
if(a<0){
a=a*a*a;
} else {a=a/3;}
cin>>b;
if(b<0){
b=b*b*b;
} else {b=b/3;}
cin>>c;
if(c<0){
c=c*c*c;
} else {c=c/3;}
cout<<"A=" << a << endl << "B=" << b << endl << "C=" << c ;
return 0;
}
