// This program has three functions: main, deep, and deeper
#include <iostream>
using namespace std;

//*****************************************
// Definition of function deeper          *
// This function displays a message.      *
//*****************************************

void deeper()
{
   cout << "I am now inside the function deeper.\n";
}

//*****************************************
// Definition of function deep            *
// This function displays a message.      *
//*****************************************

void deep()
{
   cout << "I am now inside the function deep.\n";
   deeper();   // Call function deeper
   cout << "Now I am back in deep.\n";
}

//*****************************************
// Function main                          *
//*****************************************

int main()
{
   cout << "I am starting in function main.\n";
   deep();     // Call function deep
   cout << "Back in function main again.\n";
   return 0;
}