import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.InputMismatchException;
import java.util.Queue;

public class Main {
	static InputStream is;
	static PrintWriter out;
	static String INPUT = "";
	
	static void solve()
	{
		int n = ni();
		int[] from = new int[n-1];
		int[] to = new int[n-1];
		for(int i = 0;i < n-1;i++){
			from[i] = ni()-1;
			to[i] = ni()-1;
		}
		int[][] g = packU(n, from, to);
		int[][] pars = parents3(g, 0);
		int[] par = pars[0], ord = pars[1], dep = pars[2];
		int[] route = new int[n];
		int p = 0;
		for(int j = n-1;j >= 0;j = par[j]){
			route[p++] = j;
		}
		Queue<Integer> q = new ArrayDeque<>();
		int[] color = new int[n];
		Arrays.fill(color, -1);
		for(int i = 0;i < p/2;i++){
			color[route[i]] = 1;
			q.add(route[i]);
		}
		for(int i = p/2;i < p;i++){
			color[route[i]] = 0;
			q.add(route[i]);
		}
		while(!q.isEmpty()){
			int cur = q.poll();
			for(int e : g[cur]){
				if(color[e] == -1){
					color[e] = color[cur];
					q.add(e);
				}
			}
		}
		int one = 0;
		for(int i = 0;i < n;i++)one += color[i];
		int zero = n-one;
		if(zero > one){
			out.println("Fennec");
		}else{
			out.println("Snuke");
		}
	}
		
		public static int[][] parents3(int[][] g, int root) {
			int n = g.length;
			int[] par = new int[n];
			Arrays.fill(par, -1);
			
			int[] depth = new int[n];
			depth[0] = 0;
			
			int[] q = new int[n];
			q[0] = root;
			for (int p = 0, r = 1; p < r; p++) {
				int cur = q[p];
				for (int nex : g[cur]) {
					if (par[cur] != nex) {
						q[r++] = nex;
						par[nex] = cur;
						depth[nex] = depth[cur] + 1;
					}
				}
			}
			return new int[][] { par, q, depth };
		}
		
		static int[][] packU(int n, int[] from, int[] to) {
			int[][] g = new int[n][];
			int[] p = new int[n];
			for (int f : from)
				p[f]++;
			for (int t : to)
				p[t]++;
			for (int i = 0; i < n; i++)
				g[i] = new int[p[i]];
			for (int i = 0; i < from.length; i++) {
				g[from[i]][--p[from[i]]] = to[i];
				g[to[i]][--p[to[i]]] = from[i];
			}
			return g;
		}
		
		
		
		
		
	
	public static void main(String[] args) throws Exception
	{
		long S = System.currentTimeMillis();
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);
		
		solve();
		out.flush();
		long G = System.currentTimeMillis();
		tr(G-S+"ms");
	}
	
	private static boolean eof()
	{
		if(lenbuf == -1)return true;
		int lptr = ptrbuf;
		while(lptr < lenbuf)if(!isSpaceChar(inbuf[lptr++]))return false;
		
		try {
			is.mark(1000);
			while(true){
				int b = is.read();
				if(b == -1){
					is.reset();
					return true;
				}else if(!isSpaceChar(b)){
					is.reset();
					return false;
				}
			}
		} catch (IOException e) {
			return true;
		}
	}
	
	private static byte[] inbuf = new byte[1024];
	static int lenbuf = 0, ptrbuf = 0;
	
	private static int readByte()
	{
		if(lenbuf == -1)throw new InputMismatchException();
		if(ptrbuf >= lenbuf){
			ptrbuf = 0;
			try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
			if(lenbuf <= 0)return -1;
		}
		return inbuf[ptrbuf++];
	}
	
	private static boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
//	private static boolean isSpaceChar(int c) { return !(c >= 32 && c <= 126); }
	private static int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }
	
	private static double nd() { return Double.parseDouble(ns()); }
	private static char nc() { return (char)skip(); }
	
	private static String ns()
	{
		int b = skip();
		StringBuilder sb = new StringBuilder();
		while(!(isSpaceChar(b))){
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	
	private static char[] ns(int n)
	{
		char[] buf = new char[n];
		int b = skip(), p = 0;
		while(p < n && !(isSpaceChar(b))){
			buf[p++] = (char)b;
			b = readByte();
		}
		return n == p ? buf : Arrays.copyOf(buf, p);
	}
	
	private static char[][] nm(int n, int m)
	{
		char[][] map = new char[n][];
		for(int i = 0;i < n;i++)map[i] = ns(m);
		return map;
	}
	
	private static int[] na(int n)
	{
		int[] a = new int[n];
		for(int i = 0;i < n;i++)a[i] = ni();
		return a;
	}
	
	private static int ni()
	{
		int num = 0, b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private static long nl()
	{
		long num = 0;
		int b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private static void tr(Object... o) { if(INPUT.length() != 0)System.out.println(Arrays.deepToString(o)); }
}


Measured memory_bytes: 30840