"""
Write a function that receives a string and returns a camel case version of it.
Example:
    camel_case('hello world')  # Hello World
"""


def camel_case(a_string):
	# Cycle through string
	# Remember a string is a sequence of characters
	for char in a_string:

		# Check to see if the char is the first char
		# If so, change it to upper case
		# Also, the upper variable tells you if you have already
		# changed a letter to upper for the duration of the word
		if char == a_string[0]:
			char = char.upper()
			upper = True
		if upper == False:
			char = char.upper()
			upper = True

		#checks to see if char is a space
		# If so, reset upper boolean
		if char == ' ':
			upper = False

	print a_string
	return a_string

camel_case('hello world')
camel_case('yo this is a string')
camel_case('uh one final test')