Balanced Parentheses Checker

Given a string S containing only the characters ('), ')', '{', '}', '[', and ']', determine if the parentheses in the string are properly nested and balanced. A string is considered balanced if all open brackets have corresponding matching closed brackets in the correct order.

The problem can be formulated as follows: \[ \text{isBalanced}(S) = \begin{cases} \text{True} & \text{if } S \text{ is empty or every opening bracket has a matching closing bracket in the correct order},\\ \text{False} & \text{otherwise.} \end{cases} \]

For example, the string "{[()]}" is balanced, while "{[(])}" is not.

inputFormat

The input consists of a single line containing the string S (possibly empty) which is composed solely of the characters '(', ')', '{', '}', '[' and ']'.

outputFormat

Output a single line containing either True if the string is balanced, or False if it is not.

## sample

{[()]}

True

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