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

fun PrintWriter.solve() {
    val n = nextInt()
    val graph = Array(n) { mutableListOf<Int>() }
    for (i in 0 until n * (n - 1) / 2) {
        val a = nextInt() - 1
        val b = nextInt() - 1
        val c = next()
        graph[a].add(b)
        graph[b].add(a)
        val visited = BooleanArray(n) { false }
        val stack = Stack<Int>()
        stack.push(0)
        visited[0] = true
        while (stack.isNotEmpty()) {
            val v = stack.pop()
            for (w in graph[v]) {
                if (!visited[w]) {
                    stack.push(w)
                    visited[w] = true
                }
            }
        }
        if (visited.all { it }) {
            println(c)
            return
        }
    }
}

fun main() {
    val writer = PrintWriter(System.out, false)
    writer.solve()
    writer.flush()
}

// region Scanner
private var st = StringTokenizer("")
private val br = System.`in`.bufferedReader()

fun next(): String {
    while (!st.hasMoreTokens()) st = StringTokenizer(br.readLine())
    return st.nextToken()
}

fun nextInt() = next().toInt()
fun nextLong() = next().toLong()
fun nextLine() = br.readLine()
fun nextDouble() = next().toDouble()
// endregion