Concatenation Pair Finder

You are given a list of distinct words and a target string. Your task is to determine if you can form the target string by concatenating exactly two distinct words from the list.

If a valid pair exists, print the two words separated by a single space. Otherwise, output No pair found.

For example, if the list is ["apple", "banana", "carrot", "dog", "elephant"] and the target string is "carrotdog", the answer is "carrot dog".

Note: The concatenation should exactly match the target, and each of the two words must be different.

inputFormat

The input is read from stdin and has the following format:

N
word1 word2 ... wordN
target

Where:

• N is an integer representing the number of words.
• The second line contains N space-separated words.
• The third line contains the target string.

outputFormat

Print to stdout the two words separated by a single space that form the target string. If no such pair exists, print No pair found.

## sample

5
apple banana carrot dog elephant
carrotdog

carrot dog