print(str(100))
print(str(3.14))
print(str(True))
print(bool(0), bool(0.0))
print(bool(''))
print(bool(10), bool(3.6))
print(bool('hello'))
name, age = '홍길동', 20
print(name, '님의 나이는 ', age, '살 입니다.',)
#from time import localtime
#print(now = localtime())
#print(now)
a = 123
b = -123
print("출력: [{:5}], [{:+5}], [{:+05}]".format(a, a, a))
print("출력: [{:05}]), [{:05}]".format(a, b))