#!/usr/bin/python3
# -*- coding: utf-8 -*-

x = 4
print(type(x))
print(id(x))
print(x)

y = 4.0
print(type(y))
print(id(y))
print(y)

# If I type 7, what is the type of z???
z: str = input()
print(type(z))
print(id(z))
print(z)

# Type-hint comment, optional for now, but recommended
# Explicit is better than implicit!!
a: int = 4
b: float = 4.0

# Assignment statements
# An assignment statement assigns a variable with the value of an expression.
# [var] = [arithexpr]
# Left must be a variable, right an arithmetic expression.
# Below,  the third statement assigns a with 2 times a's current value.
# If a was 4, the statement assigns a with 2 * 4, or 8.

print(a)
# variables can be re-assigned to themselves
a = 2 * a

# variables can be re-assigned to other values
b = (4 + 3) / 2
print(b)