using System;
using System.Collections.Generic;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.IO;
using System.Reflection;
using static System.Math;
using System.Numerics;
static class Program{
	const int mod=(int)1e9+7;
	static List<int>[] li;
	static bool[] b;
	static int[] h;
	static bool bo=false;
	static void Main(){
		Sc sc=new Sc();
		var s=sc.Ia;
		int n=s[0],m=n-1;
		li=new List<int>[n+1];
		b=new bool[n+1];
		h=new int[n+1];
		for(int i=1;i<=n;i++){li[i]=new List<int>();}
		for(int i=0;i<m;i++){
			var e=sc.Ia;
			li[e[0]].Add(e[1]);
			li[e[1]].Add(e[0]);
		}
		h=new int[n+1];
		var c1=Fc1(1,1);
		h=new int[n+1];
		var c2=Fc2(c1,1);
		Fu(c2.Item2,c2.Item2);
		Console.WriteLine("{0}",bo?"First":"Second");
	}
	static int Fu(int a,int g){
		b[a]=true;
		var p=0;
		for(int i=0;i<li[a].Count;i++){
			if(!b[li[a][i]]){
				p+=Fu(li[a][i],g);
			}
		}
		if(a==g&&p==0){bo=true;}
		else if(p==0){p=1;}
		else if(p==1){p=0;}
		else{bo=true;}
		return p;
	}
	static int Fc1(int a,int g){
		h[a]=g;
		int c=a;
		for(int i=0;i<li[a].Count;i++){
			if(h[li[a][i]]==0){
				var d=Fc1(li[a][i],g+1);
				if(h[c]<h[d]){c=d;}
			}
		}
		return c;
	}
	static Tuple<int,int,int> Fc2(int a,int g){
		h[a]=g;
		int c=a,e=-1,f=-1;
		for(int i=0;i<li[a].Count;i++){
			if(h[li[a][i]]==0){
				var d=Fc2(li[a][i],g+1);
				if(h[c]<h[d.Item1]){c=d.Item1;e=d.Item2;f=d.Item3;}
			}
		}
		if((h[c]&1)==0){
			if((h[c])>>1==g){e=a;}
			else if(((h[c])>>1)+1==g){f=a;}
		}
		else if((h[c]+1)>>1==g){e=a;}
		return Tuple.Create(c,e,f);
	}
}
public class Sc{
	public int I{get{return int.Parse(Console.ReadLine());}}
	public long L{get{return long.Parse(Console.ReadLine());}}
	public double D{get{return double.Parse(Console.ReadLine());}}
	public string S{get{return Console.ReadLine();}}
	public int[] Ia{get{return Array.ConvertAll(Console.ReadLine().Split(),int.Parse);}}
	public long[] La{get{return Array.ConvertAll(Console.ReadLine().Split(),long.Parse);}}
	public double[] Da{get{return Array.ConvertAll(Console.ReadLine().Split(),double.Parse);}}
	public string[] Sa{get{return Console.ReadLine().Split();}}
	public object[] Oa{get{return Console.ReadLine().Split();}}
	public int[] Ia2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),int.Parse);}}
	public int[] Ia3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),int.Parse);}
	public int[] Ia3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),int.Parse);}
	public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}}
	public long[] La3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),long.Parse);}
	public long[] La3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),long.Parse);}
	public double[] Da2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),double.Parse);}}
	public double[] Da3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),double.Parse);}
	public double[] Da3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),double.Parse);}
	public T[] Arr<T>(int n,Func<T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f();}return a;}
	public T[] Arr<T>(int n,Func<int,T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i);}return a;}
	public T[] Arr<T>(int n,Func<string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(Console.ReadLine().Split());}return a;}
	public T[] Arr<T>(int n,Func<int,string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i,Console.ReadLine().Split());}return a;}
}

Measured memory_bytes: 30088