sum = 0;

#include <iostream>
#include <cmath>

using namespace std;

int main () 
{
    int a=7,b=2,c,min,d,f,x;
    double y,sum,l=1;

    cout <<"a+b = "<<a+b<<endl;
    cout <<"a-b = "<<a-b<<endl;
    cout <<"a/b = "<<a/b<<endl;
    cout <<"a*b = "<<a*b<<endl;
    cout <<"a%b = "<<a%b<<endl;
    cout <<"++a = "<<++a<<endl;
    cout <<"b-- = "<<--b<<endl;
    cout <<"a<<b = "<<a<<b<<endl;
    c=a>>b;
    cout <<"a>>b = "<<c<<endl;
    min=(7<2)? 2:7;
    cout <<"7>2? = "<<min<<endl;
    d=a<<=b;
    cout <<"a<<=b = "<<d<<endl;
    f=b>>=a;
    cout <<"b>>=a = "<<f<<endl;
    cout <<"sizeof( int ) = "<<sizeof( int )<<endl;


    sum = 0;
    for (x=-15; x<=15; x++)
    {
    	if ( abs(x) != 1 )
    	{
            y=(log((x*x+1)/(x*x-1)))+1.2*x;
    	}
        l=abs(y);
        sum=sum+l;
    }

    cout <<"sum= "<<sum<<endl;
    
    return 0;
}

void Loop( double &a_sum, int start, int finish )
{
    for (int x = start; x <= finish; ++x)
    {
        double y = (log((x*x + 1.0) / (x*x - 1))) + 1.2*x;
        a_sum += abs(y);
    }
}

void CalculateNew()
{
    double sum = 0.0;
    Loop( sum, -15, -2 );
    Loop( sum, 2, 15 );

    printf("New: %f\n", sum);
}

void Loop( double &a_sum, int start, int finish )
{
    if ( start <= 0 && 0 <= finish )
    {
        throw std::range_error("WTF&");
    }

    for (int x = start; x <= finish; ++x)
    {
        double y = (log((x*x + 1.0) / (x*x - 1))) + 1.2*x;
        a_sum += abs(y);
    }
}

    sum = 0;
    for (x=-15; x<=15; x++)
    {
    	if ( abs(x) != 1 )
    	{
            y=(log((x*x+1)/(x*x-1)))+1.2*x;
    	}
        l=abs(y);
        sum=sum+l;
    }