Practice Strings and Parsing with the exercise "Log Sanitizer"

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Statement

Goal

As a SecOps engineer, you must ensure that sensitive data never leaks into application logs.

For the purposes of this task, tokens are defined as being bounded by non-alphanumeric characters or the beginning or end of the line.

Inspect a stream of server log lines and sanitize all occurrences of the following two patterns, subject to the overlapping rule:

1. Credit card numbers
Exactly four consecutive tokens, each consisting of exactly 4 digits and joined by -, form a credit card number and should be replaced with [CARD_REDACTED].

2. API token
A token token (case-sensitive), immediately followed by = and another token (the value) consisting of one or more alphanumeric characters, forms an API token. Redact the value token only, replacing it with [TOKEN_REDACTED].

Overlapping rule
Overlapping occurrences of a single pattern should not be considered to fit the pattern and should remain unchanged. For example, this applies to:
• Five or more consecutive tokens, each consisting of exactly 4 digits and joined by -.
• token= appears consecutively two or more times.

If token= is immediately followed by a token consisting of exactly 4 digits, treat that 4-digit token as the API-token value. This takes precedence over any credit-card matching that might otherwise involve that token. Continue processing the remaining text after redacting that token.

All other log characters must remain untouched.

Input

Line 1: An integer N for the number of log lines.
Next N lines: A string line representing a raw log entry.

Output

N lines: The sanitized log entries.

Constraints

1 ≤ N ≤ 10
line contains between 1 and 100 printable ASCII characters.

Example

Input

4
[SYSTEM] Server running on port 8080 with 0 errors.
[TRANSFER] Moved funds from 8291-3849-1029-4820 to 5731-4921-5829-1039 confirmed.
192.168.1.1 - GET /auth?token=abC123XyZ HTTP/1.1
2023-10-01 12:00:00 INFO: Session initiated, token=validToken123 login success

Output

[SYSTEM] Server running on port 8080 with 0 errors.
[TRANSFER] Moved funds from [CARD_REDACTED] to [CARD_REDACTED] confirmed.
192.168.1.1 - GET /auth?token=[TOKEN_REDACTED] HTTP/1.1
2023-10-01 12:00:00 INFO: Session initiated, token=[TOKEN_REDACTED] login success

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