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ZOJ Problem Set - 3191
Strange Clock

Time Limit: 1 Second      Memory Limit: 32768 KB

There is a strange clock, without any number written. Can you tell me what time it is now, based on the angle of the hour hand?

When the hour hand points right (0 degree), it is 3 o'clock. When it points to 80 degrees, it's between 0 o'clock and 1 o'clock. Note that there is no 12 o'clock. You should always write 0 o'clock instead.

Input

There are at most 10 test cases. Each case contains a single integer a (0 <= a < 360), the angle of the hour hand. The input ends with a = -1.

Output

For each test case, print the current time, in one of the following format:

- Exactly x o'clock
- Between x o'clock and y o'clock

Note that, in the second format, x o'clock should be exactly one hour before y o'clock, So you cannot write something like "Between 3 o'clock and 2 o'clock".

Sample Input

90
245
-1

Sample Output

Exactly 0 o'clock
Between 6 o'clock and 7 o'clock

Author: LIU, Rujia
Source: The 34th ACM-ICPC Asia Regional 2009 Ningbo Site NIT Cup National Invitation Contest
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