Q$4)$ Accept a string from the user. The string is an IPV$4$ address. Write a program to validate the address.

$[2]$

Rules according to

Wikipedia.org

IPv$4$ uses $32-$bit addresses in dot$-$decimal notation, which consists of four decimal numbers, each ranging from $0$ to $255,$ separated by dots.

Example $1$:

Input:

$192\mathrm{.}0\mathrm{.}2\mathrm{.}265$

Output:

Invalid IPV$4$

Example $2$:

Input:

$192\mathrm{.}0\mathrm{.}2\mathrm{.}21$

Output:

Valid IPV$4$

Input:

$192\mathrm{.}3\mathrm{.}45\mathrm{.}6\mathrm{.}5$

Output:

Invalid IPv$4$