Pythons=12sappend56prints2

The output of the above code is:

[5, 6]

Explanation:

• The list s initially contains two elements: 1 and 2.
• The append() method is used to add a new element to the end of the list s.
• The new element is a list itself, [5, 6].
• Therefore, the final list s contains three elements: 1, 2, and [5, 6].
• When we print s[2], we are accessing the third element of the list s, which is [5, 6].
• Therefore, the output is [5, 6].