print("Hello, world!")

# data types
x : int= 2
y : float = .2
z : str = "hello"
j : bool = True

# arithmetic operators
# + - / * **(exponent)
# // integer division

#logical operators
# >, <, <=, >=, ==, !=
# and, or, not 

print(3 > 4)
print(20 == 200)
print(True and True, False and True, True or False)

# membership operators
# in, not in
print("hello" in "hello, world")
print("tart" not in "war war war")