#include<iostream>
using namespace std;
int main()
{
int a,b,c;


 cout<<"tell one side\n";

cin>>a;

cout<<"tell second side\n";

cin>>b;


cout<<"tell third side\n";

cin>>c; 

if(a>0 && b>0 && c > 1)
{
cout<<"V = a*b*c = ";  
cout<< a*b*c;



} 
else
{
    cout<<"Side can't be lower than 1";
}
}