# !/usr/bin/env python
# -*- coding:utf-8 -*-
""" 
@author: Wang Ye (Wayne)
@file: Concatenation of Array.py
@time: 2021/07/19
@contact: wangye@oppo.com
@site: 
@software: PyCharm
# code is far away from bugs.
"""

from typing import *


class Solution:
    def getConcatenation(self, nums: List[int]) -> List[int]:
        return nums + nums
