array = [
9,
7,
4,
8,
6,
2,
5,
1]
L=len(
array)
for i in range(L):
for j in range(L-i):
if array[L-j-
1] <
array[L-j-
2]:
array[L-j-
1],
array[L-j-
2]=
array[L-j-
2],
array[L-j-
1]
print(
array)
print(
array[-
1])
array.append(
20)
print(
array)
array.pop()
print(
array)
array.pop(
2)
print(
array)
array[
2]=
20
print(
array)
s=[
'python',
'java',[
'php',
'asp'],
'scheme']
print(s[
2][
1])
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