1. Write docstrings for the following methods describing what each of them do:
a.
def mystery1(num1, num2):
    l = []
    
    for i in range(num1):
        l.append(num2)
    
    return l

b.
def mystery2(num1, num2):
    return [num2]*num1

c.
def mystery3(list):
    for i in range(len(list)/2):
        other_index = len(list)-i-1
        temp = list[i]
        list[i] = list[other_index]
        list[other_index] = temp