"""

全部的運算符號: () ** +x -x + - * / // % < <= == >= > != is  is not  not and or

1.() 括號
2.** 次方
3.+x -x 正負號
4.* / // % 乘 除 整除 取餘數
5.+ - 加減
6.< <= == != >= > is  is not  邏輯區
7.not 非
8.and 且
9.or 或

"""

#print(1+2*3)

"""

邏輯(運算子)->符號

< <= == != >= >
is is_not not and or

"""
a = 3
b = a
#print(a is not b)


# input() 輸入
c = input("你好: ")
print(c)