# coding: utf-8
a = "hello"
b = "world"

# 문자열 연산
print(a + b)
print(a*3)
789f0c408c826ab02085bed3e311b90a2c8b037a
<mask token>

<mask token>
print(a + b)
print(a * 3)

a = 'hello'
b = 'world'
print(a + b)
print(a * 3)

# coding: utf-8
a = "hello"
b = "world"

# 문자열 연산
print(a + b)
print(a*3)