Hares and Foxes 

The Antique Comedians of Malidinesia play an interesting comedy where many animals occur. Because they want their plays to be as true as possible, a specialist studies the behaviour of various animals. Recently, he is interested in a binary dynamic ecological system hares-foxes (SHF). As a part of this project, you are asked to design and implement intelligent automatic target evaluation simulator (IATES) for this system. The behaviour of the SHF follows so called standard model, described by the following set of difference equations.

$$\begin{eqnarray*}h_{y+1} & = & a.h_y - b.f_y \\ f_{y+1} & = & c.f_y + d.h_y \end{eqnarray*}$$

where h_y resp. f_y represent the difference of the number of hares resp. foxes in year_y and the reference count determined at the beginning of the experiment. The units of h_y and f_y are unknown. Therefore, h_y and f_y are to be treated as real numbers. Your task is to write a program to determine the long term evolution of SHF.

Input 

The input consists of N cases. The first line of the input contains only positive integer N. Then follow the cases. Each case consists of six real numbers a, b, c, d, h₁998 and f₁998, written in this order on three lines, two numbers per line, separated by one or more spaces. The numbers are given in the classical format, i.e. optional sign, sequence of digits, optional dot and optional sequence of digits. The text form of a number does not exceed 10 characters. Each case is followed by one empty line.

Output 

For each case, print one of the following sentences:

• `Ecological balance will develop.' - if after sufficiently long time the population of both hares and foxes approaches the reference count with an arbitrary a priori given precision, i.e. $\lim h_y=0$ and $\lim f_y=0$.

• `Hares will die out while foxes will overgrow.' - if after sufficiently long time the population of hares resp. foxes falls under resp. exceeds any a priori given threshold, i.e. $\lim h_y=-infinity$ and $\lim f_y=+infinity$.

• `Hares will overgrow while foxes will die out.' - if after sufficiently long time the population of foxes resp. hares falls under resp. exceeds any a priori given threshold, i.e. $\lim h_y=+infinity$ and $\lim f_y=-infinity$.

• `Both hares and foxes will die out.' - if after sufficiently long time the population of both hares and foxes falls under any a priori given threshold, i.e. $\lim h_y=-infinity$ and $\lim f_y=-infinity$.

• `Both hares and foxes will overgrow.' - if after sufficiently long time the population of both hares and foxes exceeds any a priori given threshold, i.e. $\lim h_y=+infinity$ and $\lim f_y=+infinity$.

• `Chaos will develop.' - if none of the above mentioned description fits.

Sample Input 

2
2 0.5
0.5 0.6
2 3

0.1 1 
2 0.1
1 1

Sample Output 

Both hares and foxes will overgrow.
Hares will die out while foxes will overgrow.