a = 371
b = a
a = a + 1

# Q 1.  What are the values of a and b?  Explain.
print(a)
print(b)

c = [3, [7, 8], 1]
d = c
c[0] = c[0] + 1

# Q 2.  What are the values of c and d?  Explain.
print(c)
print(d)

c = c + c
#c[0] = 23
c[1][1] = 42

# Q 3.  What are the values of c and d?  Explain.
print(c)
print(d)