Valid IPv4 Address Checker

Your task is to determine whether a given string represents a valid IPv4 address.

An IPv4 address is composed of exactly four segments separated by periods. Each segment must satisfy the following conditions:

• It should be a non-negative integer within the range \(0\) to \(255\).
• If a segment consists of more than one digit, it must not have leading zeros (i.e. "0" is allowed only as a single digit).

For example, the address 192.168.1.1 is valid, but 192.168.01.1 is not valid because the second segment has a leading zero.

You need to read the input from standard input and output the result to standard output.

inputFormat

The input consists of a single line containing a string representing an IPv4 address.

Example:

192.168.1.1

outputFormat

Output a single line: True if the input string is a valid IPv4 address; otherwise, output False.

Example:

True

## sample

192.168.1.1

True

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