# -*- coding: utf8 -*-
first_list=[2, 4, 3]
def max_in_list (list):
    max=list[0]
    for i in list:
        if i>max:
            max=i
    return max
maximum=max_in_list(first_list)
print (maximum)
def average_in_list(list):
     sum = 0 
     for i in list:
        sum = sum +i
     float(sum)
     return sum / len(list)
average = average_in_list(first_list)
print(average)
second_list = ["Ibragim", "Sergei". "Fedor", "Bazgen", "Richard"]
def in_list(name, list) :
    for i in list:
        if name == i:
            result = "in list"
            break
        else:
            result = "not in list"
        return(result)
result = in_list(“Ibragim”, list)
print(result)
third_list=
def diff_num (list):
for i in list:
a=list.count(i)
n=len(list)-a
return n
number=diff_num(third_list)
print (number)
list_a=[21, 12, 31,9,1,6]
list_b=[5, 12, 36, 9,5,16]
list_a.remove(6)
list_a.remove(11)
def merge_lists(a,b):
    merge=list_a +list_b
    return merge
merge=merge_lists(list_a, list_b)
print merge