Intersection of Two Arrays

You are given two arrays of integers. Your task is to compute the intersection of these two arrays. The result should be a sorted list of unique integers that appear in both arrays.

Note: The input is provided via standard input (stdin) in two lines. Each line represents an array where the integers are separated by spaces. A line containing only whitespace represents an empty array.

The desired output is a single line listing the resulting integers in ascending order separated by spaces. If there are no common elements, output an empty line.

Example:

Input:
1 2 2 3
2 3 4 5
Output:
2 3

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The mathematical interpretation of finding the intersection of two sets \(A\) and \(B\) can be expressed as follows:

\[ A \cap B = \{ x \mid x \in A \text{ and } x \in B \} \]

inputFormat

The input consists of two lines provided via standard input (stdin). Each line contains zero or more integers separated by spaces. A line that is empty or contains only whitespace represents an empty array.

For example:

1 2 2 3
2 3 4 5

outputFormat

Output a single line containing the sorted unique integers that are present in both arrays. The integers should be separated by a single space. If there is no common element, output an empty line.

## sample

1 2 2 3
2 3 4 5

2 3