# Task

An IP address contains four numbers(0-255) and separated by dots. It can be converted to a number by this way:


Given a string `s` represents a number or an IP address. Your task is to convert it to another representation(`number to IP address` or `IP address to number`).

You can assume that all inputs are valid.

# Example

Example IP address: `10.0.3.193`

Convert each number to a 8-bit binary string
(may needs to pad leading zeros to the left side):
```
10  -->  00001010
0   -->  00000000
3   -->  00000011
193 -->  11000001
```
Combine these four strings: `00001010 00000000 00000011 11000001` and then convert them to a decimal number:
`167773121`


# Input/Output


`[input]` string `s`

A number or IP address in string format.

`[output]` a string

A converted number or IP address in string format.

# Example

For `s = "10.0.3.193"`, the output should be `"167773121"`.

For `s = "167969729"`, the output should be `"10.3.3.193"`.

Difficulty: EASY
Starter code: def numberAndIPaddress(s):
	

Solutions:
from ipaddress import IPv4Address

def numberAndIPaddress(s):
	return str(int(IPv4Address(s))) if '.' in s else str(IPv4Address(int(s)))


from ipaddress import IPv4Address

def numberAndIPaddress(string):
	if '.' in string:
		return str(int(IPv4Address(string)))
	return str(IPv4Address(int(string)))


def numberAndIPaddress(s):
	if '.' in s:
		ans = str(int(''.join(('{:0>8b}'.format(int(n)) for n in s.split('.'))), 2))
	else:
		s32 = '{:0>32b}'.format(int(s))
		ans = '.'.join((str(int(s32[8 * i:8 * (i + 1)], 2)) for i in range(4)))
	return ans


def numberAndIPaddress(s):
	if '.' in s:
		binary = ''.join(('{:08b}'.format(int(i)) for i in s.split('.')))
		return str(int(binary, 2))
	else:
		binary = '{:032b}'.format(int(s))
		res = [str(int(binary[i:i + 8], 2)) for i in range(0, len(binary), 8)]
		return '.'.join(res)


def ipToNum(ip):
	return str(int(''.join((f'{n:08b}' for n in map(int, ip.split('.')))), 2))

def numToIp(nums):
	b = f'{int(nums):032b}'
	return '.'.join(map(str, [int(b[i:i + 8], 2) for i in (0, 8, 16, 24)]))

def numberAndIPaddress(s):
	if '.' in s:
		return ipToNum(s)
	elif '.' not in s:
		return numToIp(s)


def numberAndIPaddress(s):
	ip2num = lambda ip: sum((el * 256 ** (4 - i) for (i, el) in enumerate(map(int, ip.split('.')), 1)))
	num2ip = lambda n: '.'.join(map(str, [n >> 24, n >> 16 & 255, n >> 8 & 255, n & 255]))
	return str(ip2num(s)) if s.find('.') > 0 else num2ip(int(s))


def ip_to_int(s):
	return str(int(''.join((f'{int(n):08b}' for n in s.split('.'))), 2))

def int_to_ip(s):
	return '.'.join((str(int(b, 2)) for b in (f'{int(s):032b}'[i:i + 8] for i in range(0, 32, 8))))

def numberAndIPaddress(s):
	return ip_to_int(s) if '.' in s else int_to_ip(s)


import socket
import struct

def numberAndIPaddress(s):
	if '.' in s:
		return str(struct.unpack('>I', socket.inet_aton(s))[0])
	else:
		return socket.inet_ntoa(struct.pack('>I', int(s)))