def Zlst1():
    lst1 = []
    y=1
    print "Zapolnenei spiska 1:"
    while y==1:
        x = input()
        if x == "end":
            y=0
        else:
            lst1.append(x)

Zapolnenei spiska 1:
Panasonic
Traceback (most recent call last):
  File "C:\Users\Сергей\Documents\NetBeansProjects\spiski\src\spiski.py", line 15, in <module>
    lst1 = Zlst1()
  File "C:\Users\Сергей\Documents\NetBeansProjects\spiski\src\spiski.py", line 8, in Zlst1
    x = input()
  File "<string>", line 1, in <module>
NameError: name 'Panasonic' is not defined

>>> x = [1,2,3,4,5]
>>> y = [1,2,3]
>>> x = set(x)
>>> y = set(y)
>>> x-y
set([4, 5])

def Zlst3(lst1,lst2): 
    lst3 = []
    n = 0
    m = 0
    x = 1
    while x == 1:
        while lst1[0+n] == lst2[0+m]:
            m=m+1
            if lst2[0+m] == lst2[-1]:
                n = n+1
                m = 0
        lst3.append(lst1[0+n])
        n = n+1
        if lst1[0+n] == lst1[-1]:
            x = 0
    print lst3
    return lst3

lst2[0+m] == lst2[-1]

for element in lst1:
    if element in lst2:
        ....
        PROFIT

lst3 = [element for element in lst1 if not element in lst2]

def Zlst():
    lst = []
    y=1
    while y==1:
        x = raw_input()
        if x == "end":
            y=0
        else:
            lst.append(x)
    return lst

x=
1
2
3
4,5
6
7
print x
[1, 2, 3, [4, 5], 6, 7]

lst3 = [element for element in lst1 if not element in lst2]