WAP to illustrate the concept of call by value|C++

CODE:
#include <iostream> 
using namespace std; 
void change(int data); 
int main() 
{ 
int data = 3; 
change(data); 
cout << "Value of the data is: " << data<< endl; 
return 0; 
} 
void change(int data) 
{ 
data = 5; 
}