# scopes.py
A = 100
ex1 = [A for A in range(5)]
print(A)  # prints: 100

ex2 = list(A for A in range(5))
print(A)  # prints: 100

ex3 = {A: 2 * A for A in range(5)}
print(A)  # prints: 100

ex4 = {A for A in range(5)}
print(A)  # prints: 100

s = 0
for A in range(5):
    s += A
print(A)  # prints: 4