每筆測資的第一行有個S代表行程數(S<=100)
接下來S行有行程的開始時間以及結束時間、行程名稱(時間以24小時制表示)
The input will consist on an arbitrary number of test cases, each test case represents one day.

The first line of each set contains a positive integer s (not greater than 100) representing the number of scheduled appointments during that day. In the next s lines there are the appointments in the following format:

time1 time2 appointment

Where time1 represents the time which the appointment starts and time2 the time it ends. All times will be in the ‘hh:mm’ format, time1 will always be strictly less than time2, they will be separated by a single space and all times will be greater than or equal to 10:00 and less than or equal to 18:00. So, your response must be in this interval as well (i.e. no nap can start before 10:00 and last after 18:00).

The appointment can be any sequence of characters, but will always be in the same line. You can assume that no line will be longer than 255 characters, that 10 ≤ hh ≤ 18 and that 0 ≤ mm < 60.

You CAN’T assume, however, that the input will be in any specific order. You must read the input until you reach the end of file.

如果有多組解請輸出時間較早的解(輸出格式請參照範例輸出)
For each test case, you must print the following line:

Day #d: the longest nap starts at hh : mm and will last for [H hours and] M minutes.

Where d stands for the number of the test case (starting from 1) and hh : mm is the time when the nap can start. To display the duration of the nap, follow these simple rules:

1. if the total duration X in minutes is less than 60, just print ‘M minutes’, where M = X.

2. if the total duration X in minutes is greater or equal to 60, print ‘H hours and M minutes’,
where
H = X ÷ 60 (integer division, of course) and M = X mod 60.

Notice that you don’t have to worry with concordance (i.e. you must print ‘1 minutes’ or ‘1 hours’ if it’s the case).

The duration of the nap is calculated by the difference between the ending time free and the begining time free. That is, if an appointment ends at 14:00 and the next one starts at 14:47, then you have (14:47)-(14:00) = 47 minutes of possible nap.

If there is more than one longest nap with the same duration, print the earliest one. You can assume that there won’t be a day all busy (i.e. you may assume that there will be at least one possible nap).

Day #1: the longest nap starts at 15:00 and will last for 30 minutes.
Day #2: the longest nap starts at 15:00 and will last for 1 hours and 45 minutes.
Day #3: the longest nap starts at 17:15 and will last for 45 minutes.
Day #4: the longest nap starts at 13:00 and will last for 5 hours and 0 minutes.