numbers = 1 + 1 + 2 * 3 / 4.0
print(numbers)

#Another operator available is the modulo (%) operator, which returns the integer remainder of the division. dividend % divisor = remainder.

remainder = 5 % 6
print(remainder)

#square
square = 6 ** 2
print(square)

helloworld = "hello" + " " + "world"
print(helloworld)

#Python also supports multiplying strings to form a string with a repeating sequence:
lotsofhellos = "hello" * 10
print(lotsofhellos)

#Lists can be joined with the addition operators:
even_numbers = [2,4,6,8]
odd_numbers = [1,3,5,7]
all_numbers = odd_numbers + even_numbers
print(all_numbers)
print([1,2,3] * 3)


# Exercise
# The target of this exercise is to create two lists called x_list and y_list, which contain 10 instances of the variables x and y, respectively. You are also required to create a list called big_list, which contains the variables x and y, 10 times each, by concatenating the two lists you have created.

x = object()
y = object()

# TODO: change this code
x_list = [x] * 10
y_list = [y] * 10
big_list = x_list + y_list

print("x_list contains %d objects" % len(x_list))
print("y_list contains %d objects" % len(y_list))
print("big_list contains %d objects" % len(big_list))

# testing code
if x_list.count(x) == 10 and y_list.count(y) == 10:
    print("Almost there...")
if big_list.count(x) == 10 and big_list.count(y) == 10:
    print("Great!")