/* 3 ב */

​

using System;

Console.Write("Enter number of numbers ");

int n = int.Parse(Console.ReadLine());

Console.Write("Enter " + n + " numbers ");

int[] number = new int[n];

for (int i = 0; i < n; i++){

    int num = int.Parse(Console.ReadLine());

    number[i] = num;

}

for (int i = 0; i < n; i++) {

Console.Write(-number[i] + " ");

}

Console.WriteLine();

for (int i = n - 1; i >= 0; i--) {

Console.Write(Math.Abs(number[i]) + " ");

}