Concatenate_an_array_with_itself.sh

# Problem Link :- https://www.hackerrank.com/challenges/bash-tutorials-concatenate-an-array-with-itself/problem
# Given a list of countries, each on a new line, your task is to read them into an array. Then, 
# concatenate the array with itself (twice) - so that you have a total of three repetitions of 
# the original array - and then display the entire concatenated array, with a space between each
# of the countries' names.

name=$(cat)
output=("${name[@]}" "${name[@]}" "${name[@]}")
echo ${output[@]}