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Word Clock

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Time limit0.5sMemory limit512 MB

Summary

Convert an hour and minute into the words a word clock shows, using past or to and special phrases for 0, 15, 30, and 45 minutes.

Level: Easy3 of 10
Topics: Implementation, String, Math, Simulation
Solved: No attempts yet

Problem

A word clock tells the time using words. Here are some examples.

5:00 → five o' clock
5:01 → one minute past five
5:10 → ten minutes past five
5:15 → quarter past five
5:28 → twenty eight minutes past five
5:30 → half past five
5:40 → twenty minutes to six
5:45 → quarter to six
5:47 → thirteen minutes to six

When the minutes are 0, use "o' clock". When 1 ≤ minutes ≤ 30, use "past". When minutes > 30, use "to".

Given a time, print it in the phrasing a word clock uses.

Input

The first line gives the hour h (1 ≤ h ≤ 12), and the second line gives the minute m (0 ≤ m < 60).

Output

On the first line, print the given time in the phrasing a word clock uses.

Examples4

Example 1
Input
```
5
47
```
Expected output
```
thirteen minutes to six
```
Example 2
Input
```
3
0
```
Expected output
```
three o' clock
```
Example 3
Input
```
7
15
```
Expected output
```
quarter past seven
```
Example 4
Input
```
12
41
```
Expected output
```
nineteen minutes to one
```

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