############################
#
# Please complete this quiz
#

# declare an int variable named total with the value of 0
total = 0

# declare an array named numbers with all numbers 0 - 20
numbers = range(1-21)
# write a for loop that processes each number
# def even(num):
#     if (num % 2 == 0):
#         return True

# def add(x, y):
#     total == x + y
    
#     # print total
#     return total

            
for num in numbers:
    if total %2 == 0:
       total = total + num
        
print total
        
        
        
       
    # elif even(num) is False:
    #     print "f"

    #  if (num % 2 == 0):
    #      num + total
    
# def odd(num):
#     if num == (5,15):
#         print "odd"
# # if the number is even add it to total\
# if num == even: 
#     even(num)
#     print "even"
# # if the number is odd and a multiple of 5 display the number preceded by the word Checkpoint: on a single line
# if num == odd:
#     print "Checkpoint: %r" % num
#     odd(num)
#     print "odd"
# #display the value of total followed by a dash and the word total
# print "%r - total" % total
#print "* %r" % total

