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This puzzle can be solved using the following concepts. Practice using these concepts and improve your skills.

Statement

 Goal

You are given an integer n. In the next n lines you get the whole code. You must return whether the code is valid - that means the brackets are valid. You don't have to check anything else. If there are no brackets, return No brackets, if it is valid - Valid, otherwise Invalid

Notes:
Brackets to check for in code: ( ) { } [ ]
There can be brackets in strings and you have to ignore them. That means, ignore everything that is in quotes "ignore (this)".
All string will be valid: they will open and close. But there can be escapes. For example: "some \" string\" \\ -_-"
There will be no comments in code.
There will be no empty lines.
Input
Line 1: An integer n for the number lines of code.
Next n lines: A line of code.
Output
Line 1 : Valid, Invalid or No brackets
Constraints
1 ≤ n ≤ 50
Example
Input
1
console.log("Hello World!");
Output
Valid

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