using System.CodeDom.Compiler;

using System.Collections.Generic;

using System.Collections;

using System.ComponentModel;

using System.Diagnostics.CodeAnalysis;

using System.Globalization;

using System.IO;

using System.Linq;

using System.Reflection;

using System.Runtime.Serialization;

using System.Text.RegularExpressions;

using System.Text;

using System;

​

public class Solution {

​

    // Complete the plusMinus function below.

    static void plusMinus(int[] arr, int n) {

    }

​

    public static void Main(string[] args) {

        int n = Convert.ToInt32(Console.ReadLine());

​

        int[] arr = Array.ConvertAll(Console.ReadLine().Split(' '), arrTemp => Convert.ToInt32(arrTemp))

        ;

        plusMinus(arr, n);

    }

}

​