2_2.cpp

//Initialization of variables

#include <iostream>
using namespace std;

int main()
{
    int a = 5;      //Initial value = 5
    int b (2);      //Initial value = 2
    int result;     // Initial value undetermined
    
    a = a + 3;
    result = a - b;
    cout << result;
    getchar();
    
    return 0;
}