Why 1 is output?

Question

m = [1,9,3,5,8,3,3,6,1,8]
print(m[m[4]])

Answer 1

m[4] == 8
so m[m[4]] == m[8]
and m[8] == 1

Answer 2

m[4] is 8
So, m[m[4]] is m[8]
and then m[8] is 1