#include <iostream>
using namespace std;

int main ()
{
  int a{5};               // initial value: 5, sizeof int
  long b(3);              // initial value: 3  sizeof long

  auto result = a + b;    // compiler automatically extracts the variable type.
  
  cout << "sizeof(result): " << sizeof(result) << endl;
  cout << "sizeof(int): " << sizeof(int) << endl;
  cout << "sizeof(long): " << sizeof(long) << endl;

  return 0;
}