Calculate Working Hours

You are given a number n representing the number of employees. For each employee, you are given their check-in and check-out times as four integers: H_in, M_in, H_out, M_out.

Your task is to calculate the total working time for each employee. The total working minutes is computed as follows:

$$total\_work\_minutes = (H_{out} \times 60 + M_{out}) - (H_{in} \times 60 + M_{in})$$

Then, the hours and minutes worked are:

$$hours = \lfloor total\_work\_minutes/60 \rfloor$$
$$minutes = total\_work\_minutes \bmod 60$$

Output the results in the same order as input, printing each employee's working time on a separate line with the hour and minute separated by a space.

inputFormat

The first line contains an integer n representing the number of employees. Each of the following n lines contains four space-separated integers: H_in M_in H_out M_out, representing the check-in hour, check-in minute, check-out hour, and check-out minute respectively.

outputFormat

For each employee, output a line with two space-separated integers representing the total hours and minutes worked.## sample

2
9 30 17 45
10 0 18 0

8 15
8 0