Write a function called two_alpha_categories(word)

This function should check which half of the alphabet the first letter of the word parameter belongs to. i.e the first half of the alphabet is a-m and the second half of the alphbet is n-z

When the first letter of the word is between a-m return 1 (as a integer).

When the first letter of the word is between n-z return 2 (as a interger).

For example:

Test	Result
two_alpha_categories("Apple")
print (two_alpha_categories("Bear"))	1
print(two_alpha_categories("Elephant"))	1