Roy and Alfi reside in two different cities, Roy in city A and Alfi in city B. Roy wishes to meet her in city B.

There are two trains available from city A to city B. Roy is on his way to station A (Railway station of city A). It will take $T_0$ time (in minutes) for Roy to reach station A. The two trains departs in $T_1$ and $T_2$ minutes respectively. Average velocities (in km/hr) of trains are $V_1$ and $V_2$ respectively. We know the distance D (in km) between city A and city B. Roy wants to know the minimum time (in minutes) to reach city B, if he chooses train optimally.

If its not possible to reach city B, print "-1" instead (without quotes).

Note: If the minimum time is not integral, round the value to the least integer greater than minimum time.

Input:

First line will contain integer T, number of test cases.

Second line will contain integers ** $T_0,T_1,T_2,V_1,V_2,D$ ** (their meanings are mentioned in problem statement)

Output:

Print the integral result, minimum time (in minutes) to reach city B in a new line.

Constraints:

$1\le T\le 10000$

$1\le T_0,T_1,T_1\le 1000$

$1\le V_1,V_2\le 500$

$1\le D\le 5000$