//---------------------------------------------------------------------------
#include <iostream.h>
#include <conio.h>
#include <stdio.h>
#include <time.h>
#include <math.h>
#include <iterator>
#include <vector>
#include <string>
#include <algorithm>
#include <vcl.h>
using namespace std;
#pragma hdrstop
//---------------------------------------------------------------------------
#pragma argsused

float G(int a,int b);

main()
{
        int a, b;
    float x,y,u;
        cout << "x, y"<<endl;
    cin >> x >> y;
    cout << "a, b"<<endl;
    cin >> a >> b;
    cout << endl;
        u=G(1.2,x)+G(y,x)-G(2*x-1,x*y);
        cout << u<<endl;
        getch();
}

float G(int a,int b)
{
    float g;
    return  g = ((a*a)+(b*b))/((a*a)+2*a*b+3*(b*b)+4);
}