#include <iostream>

using namespace std;

int main()
{
  cout << "The size of int: " << sizeof(int) << " bytes" << endl;
  cout << "The size of long: " << sizeof(long) << " bytes" << endl;
  cout << "The size of double: " << sizeof(double) 
    << " bytes" << endl;

  double area = 5.4;
  cout << "The size of variable area: " << sizeof(area) 
    << " bytes" << endl;

  int age = 31;
  cout << "The size of variable age: " << sizeof(age) 
    << " bytes" << endl;

  return 0;
}