// Fig. 1.6: fig01_06.cpp
// Addition program.
#include <iostream>
  
// function main begins program execution
int main()
{
  int integer1;  // first number to be input by user    
  int integer2;  // second number to be input by user   
  int sum;       // variable in which sum will be stored
 
  std::cout << "Enter first integer\n";  // prompt
  std::cin >> integer1;                  // read an integer
 
  std::cout << "Enter second integer\n"; // prompt
  std::cin >> integer2;                  // read an integer
 
  sum = integer1 + integer2;  // assign result to sum
 
  std::cout << "Sum is " << sum << std::endl; // print sum
 
  return 0;   // indicate that program ended successfully
 
} // end function main