Take the following IPv4 address: `128.32.10.1`
This address has 4 octets where each octet is a single byte (or 8 bits).
* 1st octet `128` has the binary representation: `10000000`
* 2nd octet `32` has the binary representation: `00100000`
* 3rd octet `10` has the binary representation: `00001010`
* 4th octet `1` has the binary representation: `00000001`
So `128.32.10.1` == `10000000.00100000.00001010.00000001`
Because the above IP address has 32 bits, we can represent it as the unsigned 32 bit number: `2149583361`
Complete the function that takes an unsigned 32 bit number and returns a string representation of its IPv4 address.
## Examples
```
2149583361 ==> "128.32.10.1"
32         ==> "0.0.0.32"
0          ==> "0.0.0.0"
```
import ipaddress
def int32_to_ip(int32):
    return str(ipaddress.IPv4Address(int32))

import ipaddress
def int32_to_ip(int32):
    return str(ipaddress.IPv4Address(int32))
