Validate IPv4 Address

You are given a string representing an IPv4 address. An IPv4 address is formatted as a.b.c.d where each of a, b, c, and d is an integer in the range $0 \leq x \leq 255$. Your task is to check whether the input string is a valid IPv4 address.

Note:

• The address must consist of exactly four parts, separated by dots.
• Each part must consist of digits only, and when converted to an integer it must fall within the specified range.
• Leading zeroes are allowed (e.g., "01" is valid and considered as 1).

Output True if the address is valid, otherwise output False.

inputFormat

Input is read from standard input (stdin). The input consists of a single line containing the IPv4 address as a string.

outputFormat

Output to standard output (stdout) a single line: either True if the address is valid or False if it is not.

## sample

192.168.1.1

True

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