import kotlin.system.exitProcess

class UnionFind(val n: Int) {
    val p = MutableList(n) { it }

    fun parent(x: Int): Int {
        if (p[x] != x) {
            p[x] = parent(p[x])
        }
        return p[x]
    }

    fun unite(x: Int, y: Int) {
        val px = parent(x)
        val py = parent(y)
        p[px] = py
    }

    fun same(x: Int, y: Int): Boolean {
        return parent(x) == parent(y)
    }
}

fun main() {
    val n = readLine()!!.toInt()
    val uf = UnionFind(n)
    var edges = 0
    repeat(n * (n - 1) / 2) {
        val line = readLine()!!.split(" ")
        val (a, b) = line.subList(0, 2).map { it.toInt() - 1 }
        if (!uf.same(a, b)) {
            uf.unite(a, b)
            edges++
            if (edges == n - 1) {
                print(line[2])
                exitProcess(0)
            }
        }
    }
}