import java.io.PrintWriter
import java.util.*

fun main(args: Array<String>) = IO().exec {
    val n = int()
    val edges = Array(n-1){Edge(int()-1, int()-1, 1)}
    val g = mkGraph(n, edges)
    val costF = dijkstra(g, 0).first
    val costS = dijkstra(g, n-1).first
    var cnt = 0
    for (i in 0 until n) {
        if (costF[i] <= costS[i]) cnt++
    }
    if (cnt > n/2) {
        println("Fennec")
    } else {
        println("Snuke")
    }
}

data class Edge(val f: Int, val t: Int, val cost: Long) : Comparable<Edge> {
    override fun compareTo(other: Edge): Int = cost.compareTo(other.cost)
}

fun mkGraph(n: Int, edges: Array<Edge>, isDirected: Boolean = false): Array<Array<Edge>> {
    val ret: Array<Array<Edge>> = Array(n){Array(0){edges[0]}}
    val cnt = IntArray(n)
    for ((a, b) in edges) {
        cnt[a]++
        if (!isDirected) cnt[b]++
    }
    for (i in 0 until n) ret[i] = Array(cnt[i]){edges[0]}
    for (e in edges) {
        ret[e.f][--cnt[e.f]] = e
        if (!isDirected) ret[e.t][--cnt[e.t]] = e
    }
    return ret
}

fun dijkstra(graph: Array<Array<Edge>>, s: Int): Pair<LongArray, IntArray> {
    data class P(val c: Long, val v: Int) : Comparable<P> {
        override fun compareTo(other: P): Int = c.compareTo(other.c)
    }

    val n = graph.size
    val d = LongArray(n){1L shl 60}
    val prev = IntArray(n){-1}
    d[s] = 0
    val heap = PriorityQueue<P>()
    heap.add(P(0, s))
    var popped: P? = null
    while (heap.poll().let { popped = it; it != null }) {
        val (pCost, p) = popped!!
        if (d[p] < pCost) {
            continue
        }
        for ((a, b, vCost) in graph[p]) {
            val v = if (a == p) b else a
            if (d[v] > d[p] + vCost) {
                d[v] = d[p] + vCost
                prev[v] = p
                heap.add(P(d[v], v))
            }
        }
    }
    return Pair(d, prev)
}

class IO {
    val printable = 33..126
    val buffer = ByteArray(1024)
    var ptr = 0
    var buflen = 0
    val out = PrintWriter(System.out)
    fun hasNextByte(): Boolean {
        if (ptr < buflen) {
            return true
        } else {
            ptr = 0
            buflen = System.`in`.read(buffer)
            if (buflen <= 0) {
                return false
            }
        }
        return true
    }
    fun readByte(): Byte {
        return if (hasNextByte()) buffer[ptr++] else return -1
    }
    fun hasNext(): Boolean {
        while (hasNextByte() && buffer[ptr] !in printable) ptr++
        return hasNextByte()
    }
    fun string(): String {
        if (!hasNext()) throw NoSuchElementException()
        val sb = StringBuilder()
        var b = readByte()
        while (b in printable) {
            sb.appendCodePoint(b.toInt())
            b = readByte()
        }
        return sb.toString()
    }
    fun long(): Long {
        if (!hasNext()) throw NoSuchElementException()
        var n = 0L
        var minus = false
        var b = readByte()
        if (b == '-'.toByte()) {
            minus = true
            b = readByte()
        }
        if (b !in '0'.toByte()..'9'.toByte()) {
            throw NumberFormatException()
        }
        while (true) {
            if (b in '0'.toByte()..'9'.toByte()) {
                n *= 10
                n += b - '0'.toByte()
            } else if (b == (-1).toByte() || b !in printable) {
                return if (minus) -n else n
            } else {
                throw NumberFormatException()
            }
            b = readByte()
        }
    }
    fun int(): Int {
        val nl = long()
        if (nl !in Integer.MIN_VALUE..Integer.MAX_VALUE) throw NumberFormatException()
        return nl.toInt()
    }
    fun double(): Double {
        return string().toDouble()
    }
    fun print(obj: Any) = out.print(obj)
    fun print(i: Int) = out.print(i)
    fun print(l: Long) = out.print(l)
    fun println(obj: Any) = out.println(obj)
    fun println(i: Int) = out.println(i)
    fun println(l: Long) = out.println(l)
    inline fun exec(block: IO.() -> Unit) {
        block()
        out.flush()
    }
}

Measured memory_bytes: 49196