my_name = 'Python'
my_age = 25

print(my_name, '은 이제 ', my_age, '살')

my_next_age = my_age + 1

print('내년에는', my_next_age, '살')

multiply = 9 * 9 #=81

divide = 40 / 5  #=8

power = 2 ** 10 #1024

reminder = 15 % 4  #=3

print(multiply, divide, power, reminder)

text= '2015' + '1991'

print(text)