Removing first and last digits from and interger

Write a function that, given an integer \(N1\), returns another integer \(N2\) that is the result of removing the first and last digit of \(N1\). Note: If \(N1\) has 2 digits or only one, then \(N2\) must be 0. Examples of test cases that you can automate with pytest are:

testcase number	input (\(N1\))	expected output (\(N2\))
1	42635	263
2	23	0
3	5	0
4	0	0
5	-3456	-45

Insist that the students test their programs by giving them a table
of test cases.