#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# from string import ascii_lowercase
# d = {ascii_lowercase[i]: i + 1 for i in range(len(ascii_lowercase))}
# print(d)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# my_dict = {1: "one", 2: "two"}
# d1 = {'a': 100, 'b': 200, 'c': 333}
# d2 = {'x': 300, 'y': 200, 'z': 777}
# print(type(my_dict.items()))
# for i in my_dict.items():
# print(i[0], i[1])
# d2.update(d1)
# print(d2)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# n = int(input())
# d = {}
# for i in range(n):
# name = input()
# if name not in d:
# d[name] = 0
# print('OK')
# else:
# d[name] += 1
# print(name + str(d[name]))
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# countries = {
# "Sweden": ["Stockholm", "Göteborg", "Malmö"],
# "Norway": ["Oslo", "Bergen", "Trondheim"],
# "England": ["London", "Birmingham", "Manchester"],
# "Germany": ["Berlin", "Hamburg", "Munich"],
# "France": ["Paris", "Marseille", "Toulouse"]
# }
# city = input()
# flag = False
# for key in countries.keys():
# if city in countries[key]:
# print(f'INFO: {city} is a city in {key}')
# flag = True
# if flag == False:
# print(f'ERROR: Country for {city} not found')
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# from pprint import pprint
# user = {
# "id": 4170,
# "uid": "5e941db5-9e0f-4f94-9fc5-734110c6be14",
# "password": "SyUpfo1ljm",
# "first_name": "Teresa",
# "last_name": "Wehner",
# "username": "teresa.wehner",
# "email": "teresa.wehner@email.com",
# "gender": "Non-binary",
# "phone_number": "+674 424.561.2776",
# "social_insurance_number": "637316241",
# "date_of_birth": "1993-08-17"
# }
# user['secret'] = user.pop('password')
# user['surname'] = user.pop('last_name')
# pprint(user)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# l = list(map(int, input().split()))
# d = {}
# cnt = -3
# for i in range(len(l) - 1):
# if len(d) == 0:
# d = {l[-2]:l[-1]}
# else:
# d = {l[cnt]:d}
# cnt -= 1
# print(d)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# s = 'waejskldcnvawefigas,dfaswe'
# d = {}
# for i in s:
# if i.isalpha():
# d[i] = d.get(i, 0) + 1
# print(d)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# workers = {
# 'employer1': {'name': 'Jhon', 'salary': 7500},
# 'employer2': {'name': 'Emma', 'salary': 8000},
# 'employer3': {'name': 'Brad', 'salary': 500}
# }
# workers['employer3']['salary'] = 8500
# print(workers)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# supermarket = {
# "milk": {"quantity": 20, "price": 1.19},
# "biscuits": {"quantity": 32, "price": 1.45},
# "butter": {"quantity": 20, "price": 2.29},
# "cheese": {"quantity": 15, "price": 1.90},
# "bread": {"quantity": 15, "price": 2.59},
# "cookies": {"quantity": 20, "price": 4.99},
# "yogurt": {"quantity": 18, "price": 3.65},
# "apples": {"quantity": 35, "price": 3.15},
# "oranges": {"quantity": 40, "price": 0.99},
# "bananas": {"quantity": 23, "price": 1.29}
# }
# sum = 0
# for i in supermarket.keys():
# sum += supermarket[i]['quantity'] * supermarket[i]['price']
# print(sum)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Сколько раз встречается каждая буква
# s = input().lower()
# d = {}
# for i in s:
# if i.isalpha():
# d[i] = d.get(i, 0) + 1
# print(d)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# morze = {'a': '•—', 'b': '—•••', 'c': '—•—•', 'd': '—••',
# 'e': '•', 'f': '••—•', 'g': '——•', 'h': '••••',
# 'i': '••', 'j': '•———', 'k': '—•—', 'l': '•—••',
# 'm': '——', 'n': '—•', 'o': '———', 'p': '•——•',
# 'q': '——•—', 'r': '•—•', 's': '•••', 't': '—',
# 'u': '••—', 'v': '•••—', 'w': '•——', 'x': '—••—',
# 'y': '—•——', 'z': '——••'}
# l = list(input().split())
# for i in l:
# for j in i:
# print(morze[j.lower()], end=' ')
# print()
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# {
# 'Bob Moore': {
# 'salary': 330000,
# 'gender': 'M',
# 'passport': '1635777202'
# },
# 'Gina Moore': {
# 'salary': 12500,
# 'gender': 'F',
# 'passport': '1639999999'
# }
# }
# persons= [
# ('Allison Hill', 334053, 'M', '1635644202'),
# ('Megan Mcclain', 191161, 'F', '2101101595'),
# ('Brandon Hall', 731262, 'M', '6054749119'),
# ('Michelle Miles', 539898, 'M', '1355368461'),
# ('Donald Booth', 895667, 'M', '7736670978'),
# ('Gina Moore', 900581, 'F', '7018476624'),
# ('James Howard', 460663, 'F', '5461900982'),
# ('Monica Herrera', 496922, 'M', '2955495768'),
# ('Sandra Montgomery', 479201, 'M', '5111859731'),
# ('Amber Perez', 403445, 'M', '0602870126')
# ]
# data = {}
# for i in persons:
# data[i[0]] = {'salary': i[1], 'gender': i[2], 'passport': i[3]}
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# from pprint import pprint
# data = {
# "my_friends": {
# "count": 10,
# "people": [{
# "first_name": "Kurt",
# "id": 621547005,
# "last_name": "Cobain",
# "bdate": "31.8.2005"
# }, {
# "first_name": "Виолетта",
# "id": 484200150,
# "last_name": "Кастилио",
# }, {
# "first_name": "Иринка",
# "id": 21886133,
# "last_name": "Бушуева",
# "bdate": "28.8.1942"
# }, {
# "first_name": "Данил",
# "id": 282456573,
# "last_name": "Греков",
# "bdate": "4.7.2002"
# }, {
# "first_name": "Валентин",
# "id": 184902932,
# "last_name": "Долматов",
# "bdate": "25.5"
# }, {
# "first_name": "Евгений",
# "id": 620469646,
# "last_name": "Шапорин",
# "bdate": "6.12.1982"
# }, {
# "first_name": "Ангелина",
# "id": 622328862,
# "last_name": "Краснова",
# "bdate": "4.11.1995"
# }, {
# "first_name": "Иван",
# "id": 576015198,
# "last_name": "Вирин",
# "bdate": "2.2.1915"
# }, {
# "first_name": "Паша",
# "id": 386922406,
# "last_name": "Воронов",
# "bdate": "27.9"
# }, {
# "first_name": "Ольга",
# "id": 622170942,
# "last_name": "Савченкова",
# "bdate": "20.12"
# }]
# }
# }
# l = data.get('my_friends').get('people')
# my_list = []
# for i in l:
# my_list.append(i.get('first_name'))
# my_list.sort()
# for i in my_list:
# print(i)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# user = {
# "id": 4170,
# "uid": "5e941db5-9e0f-4f94-9fc5-734110c6be14",
# "password": "SyUpfo1ljm",
# "first_name": "Teresa",
# "last_name": "Wehner",
# "username": "teresa.wehner",
# "email": "teresa.wehner@email.com",
# "gender": "Non-binary",
# "phone_number": "+674 424.561.2776",
# "social_insurance_number": "637316241",
# "date_of_birth": "1993-08-17",
# "employment": {
# "title": "Central Hospitality Liaison",
# "key_skill": "Organisation"
# },
# "subscription": {
# "plan": "Essential",
# "status": "Idle",
# "payment_method": "Debit card",
# "term": "Annual"
# }
# }
# keys = list(input().split())
# my_dict = {i:user.get(i) for i in keys}
# print(my_dict)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# people = [
# ['Amy Smith', '694.322.8133x22426'],
# ['Brian Shaw', '593.662.5217x338'],
# ['Christian Sharp', '118.197.8810'],
# ['Sean Schmidt', '9722527521'],
# ['Thomas Long', '163.814.9938'],
# ['Joshua Willis', '+1-978-530-6971x601'],
# ['Ann Hoffman', '434.104.4302'],
# ['John Leonard', '(956)182-8435'],
# ['Daniel Ross', '870-365-8303x416'],
# ['Jacqueline Moon', '+1-757-865-4488x652'],
# ['Gregory Baker', '705-576-1122'],
# ['Michael Spencer', '(922)816-0599x7007'],
# ['Austin Vazquez', '399-813-8599'],
# ['Chad Delgado', '979.908.8506x886'],
# ['Jonathan Gilbert', '9577853541']
# ]
# phone_book = {i[1]: i[0] for i in people}
# print(phone_book)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# from random import randint
# n = 5
# m = 3
# a = [[randint(1, 6) for j in range(m)] for i in range(n)]
# for i in a:
# print(i)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# from random import randint
# n = 5
# m = 5
# a = [[randint(1, 6) for j in range(m)] for i in range(n)]
# for i in a:
# print(i)
# b = [a[i][j] for j in range(n) for i in range(m) if i == j]
# print('Main diag: ', b)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# colors = ['White', 'Blue', 'Yellow', 'Purple', 'Black', 'Green']
# sizes = ['S', 'M', 'L', 'XL', 'XLL']
# a = [(j, i) for j in colors for i in sizes]
# print(a)
vector = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12], [13, 14, 15], [16, 17, 18]]
a = [i for l in vector for i in l]
print(a)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~