Write a concat() function that will take an arbitrary number of strings and combine them into one through a separator (the keyword argument sep). If no separator is specified, then it should separate the strings by spaces:
print(concat("turtle")) # "turtle"
print(concat("cat", "dog")) # "cat dog"
print(concat("a", "b", "c", sep=":")) # "a:b:c"You do not need to call a function, just implement it.
Tip: Consider using sep.join(strings) for concatenating arguments from your tuple.
