a={11,11,15,16}

a.pop()

ls = ["one", "two"]

def func (a):

    ls.append(a)

    return 

func ("three")

print( ls)

a = [6,1,3,4]

print(sorted(a,reverse = True))

def demo (a,b,c=7,d=10):

    return a+b+c+d

print(demo(1,2,3,4),end=',')

print(demo(1,2,d=3))

for i in range(1,5):

    if i%3 == 0: break

    else: print(i,end =' ')

x = 3

def demo():

    x = 5

demo()

print(x)

f=[{'name':'zs','age':20},{'name':'ls','age':30},{'name':'ww','age':25}]

fs = sorted(f,key = lambda x:x['age'])

print(fs)