#include <iostream>
using namespace std;

main()
{
 int val1 = 1, val2 =2, val3(3);
 float val4;
 
 cout << "Welcome" << endl << endl;

 cout << "val1: " << val1 << endl;
 cout << "val2: " << val2 << endl;
 cout << "val3: " << val3 << endl;
 cout << endl;

 // assign the variables a value
 val1 = 10;
 val2 = 15;
 val3 = 20;

 cout << "val1: " << val1 << endl;
 cout << "val2: " << val2 << endl;
 cout << "val3: " << val3 << endl;
 cout << endl;

 val1 = val1 + 1;
 val2 = val1 * val3 / (17 - 5);
 val3 = val1 + val2;

 cout << "val1: " << val1 << endl;
 cout << "val2: " << val2 << endl;
 cout << "val3: " << val3 << endl;
 cout << endl;

 val1 = 10 / 2;

 // use a type cast to convert from double to int
 val2 = static_cast<int>(11.0 / 2.0);
 
 // in C, the type cast would be written as follows:
 // val2 = (int) 11.0 / 2.0;
 // an earlier C++ form of a type cast is:
 // val2 = int (11.0 / 2.0);

 val3 = 12 / 2;
 val4 = 11.0 / 2.0;

 cout << "val1: " << val1 << endl;
 cout << "val2: " << val2 << endl;
 cout << "val3: " << val3 << endl;
 cout << "val4: " << val4 << endl;

 cout << endl << "Goodbye" << endl;
}