# Output of this Python program?
a = ([1], [2])
b = a
b[0].append(11)
b += ([3],)
b[1].append(22)
b[2].append(33)

print(a)
# --- possible answers ---
# A) ([1], [2])
# B) ([1, 11], [2])
# C) ([1, 11], [2, 22])
# D) ([1, 11], [2, 22], [3, 33])