Find a Nth highest or lowest number in a given series of numbers using Python

from System import *
from System.Collections.Generic import *

class Program(object):
	def Main(args):
		lstNumbers = List[Double](1, 2.06, -36.4, -4, 5.90, 61.9, 79.8, 8, 9, 18.0, 23.7)
		minNum = 0
		maxNum = 0
		minNum = lstNumbers[0]
		maxNum = lstNumbers[0]
		i = 1
		while i < lstNumbers.Count:
			#logic for obtaining the Minimum Number
			if minNum > lstNumbers[i]:
				minNum = lstNumbers[i]
			#logic for obtaining the Maximum Number
			if maxNum < lstNumbers[i]:
				maxNum = lstNumbers[i]
			i += 1
		Console.WriteLine("Min = {0} , Max = {1}", minNum, maxNum)
		Console.ReadKey(True)

	Main = staticmethod(Main)

Explanation: First of all we have collected the data and put into a collection.Then we have assumed the first collection element as the Maximum and Minimum number and put in two variables minNum and maxNum. Then we have looped through from second element till the last element in the collection and compared each element with minNum and maxNum variables. If the values found to be greater/smaller, then those values are assigned.