from random import randint
t = []
for i in range(16):
t.append(randint(10, 99))
print(t)
t1 = sorted(t)
t2 = sorted(t,reverse=True)
t3 = t[::-1]
print('升序',t1)
print('降序',t2)
print('逆序',t3)
print('最大值',max(t))
print('最小值',min(t))
t.remove(max(t))
t.remove(min(t))
print('删除了最大值最小值',t)
length = len(t)
summ = sum(t)
t.append(summ)
t.append(round(summ/length,2))
print('添加了总和和平均值',t)