import math
import random

x = "Hi"
def my_func():
    print(x)

my_func() #함수 안에서
print(x) #함수 밖에서

def my_func2():
    y = "Bye"
    print(y)

my_func2() #함수 안에서
#print(y) #함수 밖에서는 오류!

greeting = '밥 먹었니?'
print('서울: ', greeting)

def busan():
    greeting = '밥 뭇나?'
    print('부산: ', greeting)

busan()
print(greeting)

a = [1, 2, 3]
a.append(4)

print(random.randrange(1, 11))

print(math.pi)

print(math.ceil(2.4))
print(math.ceil(5.1))

print(math.pow(5, 9))

print(random.choice([1, 2, '가', '나']))
b = "abcedf"
print(random.choice(b))

print(random.sample(b, 3))
print(random.sample(range(1,101),5))