// Slower C++ solution:
#include<bits/stdc++.h>

#include<iostream>

#include<string>

#include<cmath>

#include<cstdio>

#include<cctype>

#include<cstring>

#include<iomanip>

#include<cstdlib>

#include<ctime>

#include<set>

#include<map>

#include<utility>

#include<queue>

#include<vector>

#include<stack>

#include<sstream>

#include<algorithm>

using namespace std;

typedef long long ll;

typedef unsigned long long ull;

typedef pair<ll,ll> pii;

typedef vector<pii> vii;

typedef vector<ll> vi;

typedef queue<ll> qi;

typedef queue<char> qc;

typedef queue<string> qs;

typedef vector<char> vc;

typedef vector<string> vs;

typedef map<char,ll> mpci;

typedef map<ll,ll> mpii;

typedef map<string,ll> mpsi;

typedef set<ll> sei;

typedef set<char> sec;

typedef set<string> ses;

typedef stack<ll> si;

typedef stack<char> sc;

typedef vector<ll> vll;

typedef vector<vi> vvi;

typedef vector<double> vd;

typedef pair<ll,ll> pll;

typedef pair<double,double> pdd;

typedef vector<pll> vpll;

typedef vector<pdd> vdd;

typedef unsigned int uint;

typedef long double ld;

typedef vector<bool> vb;

typedef vector<double> vd;

typedef vector<vi> vvi;

typedef vector<vvi> vvvi;

typedef vector<vii> vvii;

/*=====================================================================*/

#define mp make_pair

#define pb push_back

#define rep(i,n) for(int i=0;i<(int)(n);i++)

#define sz(a) (int)(a.size())

#define len(a) (int)(a.length())

#define all(s) (s).begin(),(s).end()

#define fi first

#define se second

#define be begin

#define en end

#define repd(i,n) for(int i=n-1;i>=0;i--)

#define forn(i,p,n) for(int i=p;i<n;i++)

#define ford(i,p,n) for(int i=n-1;i>=p;i--)

#define foreach(i,c) for(__typeof(c.begin())i=(c.begin());i!=(c).end();++i)

#define zero(a) memset(a,0,sizeof(a))

#define number(a,num) memeset(a,num,sizeof(a))



/*=====================================================================*/



inline void read(int &x)

{

	short negative=1;

    x=0;

    char c=getchar();

    while(c<'0' || c>'9')

    {

		if(c=='-')

			negative=-1;

		c=getchar();

	}

    while(c>='0' && c<='9')

        x=(x<<3)+(x<<1)+(c^48),c=getchar();

    x*=negative;

}

inline void write(long long x) {

  static long long sta[35];

  long long top = 0;

  do {

    sta[top++] = x % 10, x /= 10;

  } while (x);

  while (top) putchar(sta[--top] + 48);

  puts("");

}

/*======================================================================*/

bool prime(int n)

{

	if(n==0||n==1)

	  return false;

	for(int i=2;i*i<=n;i++)

	  if(n%i==0)

	    return false;

	return true;

}

/*======================================================================*/

const int dx[]={-1,0,1,0};

const int dy[]={0,-1,0,1};

const int maxn=1<<18;

int n;

vi e[maxn];

int cnt[maxn];

vi vct;

int frst;

/*======================================================================*/

void dfs(int v,int  pr)

{

	cnt[v]=1;

	vct.pb(v);

	if(v==n-1)

	{

		frst=vct[((int)vct.size()+1)/2];

	}

	rep(i,e[v].size())

	{

		int to=e[v][i];

		if(to==pr)

		  continue;

		dfs(to,v);

		cnt[v]+=cnt[to];

	}

	vct.pop_back();

}

int main()

{

  /*

	ios_base::sync_with_stdio(0);

	cin(tie);

	freopen("input.txt","r",stdin);

	freopen("output.txt","w",stdout);

  */

  /*====================================================================*/

  read(n);

  rep(i,n-1)

  {

  	int a,b;

  	read(a);

  	read(b);

  	a--,b--;

  	e[a].pb(b);

  	e[b].pb(a);

  }

  frst=-1;

  dfs(0,0);

  if(cnt[frst]*2<n)

    cout<<"Fennec";

  else

    cout<<"Snuke";

  return 0;

}


// Faster C++ solution for the same problem (measured speedup: 8.892337557687016x):
#include<cstdio>

#include<vector>

#include<algorithm>

using namespace std;

typedef unsigned uint;

int inline in(){int x=0,c;for(;(uint)((c=getchar())-'0')>=10;)

{if(c=='-')return -in();if(!~c)throw ~0;}do{x=(x<<3)+(x<<1)+(c-'0');}

while((uint)((c=getchar())-'0')<10);return x;}

int n;

void dfs(int u,vector<vector<int> >&E,vector<int>&p,vector<int>&sz){

	sz[u]=1;

	for(int i=0;i<(int)E[u].size();i++){

		int to=E[u][i];

		if(p[u]!=to){

			p[to]=u;

			dfs(to,E,p,sz);

			sz[u]+=sz[to];

		}

	}

}

int main(){

    n=in();

	vector<vector<int> >E(n);

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

		int a,b;

		a=in();b=in();

		a--;b--;

		E[a].push_back(b);

		E[b].push_back(a);

	}

	vector<int> p(n,-1),sz(n,0);

	dfs(0,E,p,sz);

	vector<int>path;

	int c=n-1,psz=0;

	while(c>=0){

		path.push_back(sz[c]-psz);

		psz=sz[c];

		c=p[c];

	}

	reverse(path.begin(),path.end());

	int ls=0;

	for(int i=0;i<((int)path.size()+1)/2;i++){

		ls+=path[i];

	}

	if(2*ls>n)printf("Fennec");

	else printf("Snuke");

	return 0;

}