#include <iostream>
#include <cmath>

using namespace std;

int main()
{
    double xn,xk,dx, a,b,c;
    cin >> xn >> xk >> dx >> a >> b >> c ;
    if(int(a) & int(c) | (int(b) | int(c)) != 0) {
        for(double x = xn; x <= xk; x += dx) {
            double f;
            if(x + 5 < 0 && c == 0) f = (1/a*x)-b;
            else if(x + 5 > 0 && c != 0) f = (x-a)/x;
            else f = (10*x)/(c-4);
            cout << "x = " << x << "\tf = " << f << endl;
        }
    }
    else {
        for(double x = xn; x <= xk; x += dx) {
            int f;
            if(x + 5 < 0 && c == 0) f = (1/a)-b;
            else if(x + 5 > 0 && c != 0) f = (x-a)/x;
            else f = (10*x)/(c-4);
            cout << "x = " << x << "\tf = " << f << endl;
        }
    }
    return 0;
}