#!/usr/bin/python
import random
def bubble_sort(data):
 length = len(data)
 for i in range(len(data) - 1):
  for j in range(len(data) - 1):
  if (data[j] < data[j + 1]):
    tmp = data[j]
    data[j] = data[j + 1]
    data[j + 1] = tmp
r = random.Random()
data = []
for n in range(0, 20):
 data.append(r.randint(1, 300))
print data, len(data)
bubble_sort(data)
print data