using python 3:

A. Write a program to calculate the second smallest number in an arbitrary list. For example, if the list is x = [1,2,3,10,23], then the output should be 2. There are many ways to do it, you will receive full marks as long as the program works.

B. define a function that takes a list x and an integer n as inputs, and then return the n-th smallest number in list x. For example, if x=[1,2,3,10,23], and n = 4, then func(x,n)=10 because 10 is the 4th smallest number in x