using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
//using System.Text;
//using System.Text.RegularExpressions;
//using System.Globalization;
//using System.Diagnostics;
using static System.Console;
//using System.Numerics;
//using static System.Math;
//using pair = Pair<int, int>;

class Program
{
    static void Main()
    {
        //SetOut(new StreamWriter(OpenStandardOutput()) { AutoFlush = false });
        new Program().solve();
        Out.Flush();
    }
    Scanner cin = new Scanner();
    readonly int[] dd = { 0, 1, 0, -1, 0 }; //→↓←↑
    readonly int mod = 1000000007;
    void chmax<T>(ref T a, T b) where T : IComparable<T> { a = a.CompareTo(b) < 0 ? b : a; }
    void chmin<T>(ref T a, T b) where T : IComparable<T> { a = a.CompareTo(b) < 0 ? a : b; }

    int[] memo;
    void solve()
    {
        int N = cin.nextint;
        var A = cin.scanint;
        Array.Sort(A);
        memo = new int[N + 1];
        for (int i = 0; i < memo.Length; i++)
        {
            memo[i] = -1;
        }
        memo[0] = 0;
        memo[1] = 1;
        memo[2] = 1;
        int G = 0;
        int l = 0;
        for (int i = 1; i <= A.Length; i++)
        {
            if (i == A.Length || A[i] - A[i - 1] > 1)
            {
                G ^= calc(i - l);
                l = i;
            }           
        }
        if (G == 0) WriteLine("Second");
        else WriteLine("First");
    }

    int calc(int x)
    {
        if (memo[x] >= 0) return memo[x];

        var L = new List<int>();
        for (int i = 0; i < (x + 1) / 2; i++)
        {
            if(i >= 2)
            {
                //WriteLine(i - 2 + 1);
                L.Add(calc(i - 2 + 1));
            }
            //WriteLine(x - 2 - i);
            L.Add(calc(x - i - 2));
        }
        L.Sort();
        //WriteLine(string.Join(" ", L));
        for (int i = 0; i < L.Count; i++)
        {
            if (L[i] != i) return i;
        }
        return -1;
    }
}

class Scanner
{
    string[] s; int i;
    char[] cs = new char[] { ' ' };
    public Scanner() { s = new string[0]; i = 0; }
    public string[] scan { get { return ReadLine().Split(); } }
    public int[] scanint { get { return Array.ConvertAll(scan, int.Parse); } }
    public long[] scanlong { get { return Array.ConvertAll(scan, long.Parse); } }
    public double[] scandouble { get { return Array.ConvertAll(scan, double.Parse); } }
    public string next
    {
        get
        {
            if (i < s.Length) return s[i++];
            string st = ReadLine();
            while (st == "") st = ReadLine();
            s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);
            i = 0;
            return next;
        }
    }
    public int nextint { get { return int.Parse(next); } }
    public long nextlong { get { return long.Parse(next); } }
    public double nextdouble { get { return double.Parse(next); } }
}