Santa puts all the presents into the huge sack. In order to let his reindeers rest a bit, he only takes as many reindeers with him as he is required to do. The others may take a nap.

Two reindeers are always required for the sleigh and Santa himself. Additionally he needs 1 reindeer per 30 presents. As you know, Santa has 8 reindeers in total, so he can deliver up to 180 presents at once (2 reindeers for Santa and the sleigh + 6 reindeers with 30 presents each).

Complete the function `reindeers()`, which takes a number of presents and returns the minimum numbers of required reindeers. If the number of presents is too high, throw an error.

Examles:

```python
reindeer(0) # must return 2
reindeer(1) # must return 3
reindeer(30) # must return 3
reindeer(200) # must throw an error
```

Difficulty: EASY
Starter code: def reindeer(presents):
	

Solutions:
from math import ceil

def reindeer(presents):
	if presents > 180:
		raise ValueError('Too many presents')
	return ceil(presents / 30.0) + 2


def reindeer(presents):
	assert presents <= 180
	return 2 + presents // 30 + (1 if presents % 30 else 0)


from math import ceil

def reindeer(presents):
	assert presents < 181
	return ceil(presents / 30.0) + 2


def reindeer(presents):
	assert presents <= 180
	return 2 + (presents + 29) // 30


from math import ceil

def reindeer(presents):
	if presents > 180:
		raise ValueError
	else:
		return 2 + ceil(presents / 30.0)


from math import ceil

def reindeer(presents):
	if presents > 180:
		raise Exception('Too many presents')
	return 2 + ceil(presents / 30)


from math import ceil

def reindeer(presents):
	assert 0 <= presents <= 180
	return int(2 + ceil(presents / 30.0))


def reindeer(presents):
	if presents > 180:
		raise Exception('Error')
	return 2 + int((presents + 29) / 30)


import math

def reindeer(presents):
	p = math.ceil(presents / 30)
	if p > 6:
		raise ValueError('Error')
	else:
		return p + 2