import * as fs from "fs"

type findType = (x: number) => number
type mergeType = (x: number, y: number) => void
type sizeType = (x: number) => number
type sameType = (n: number, y: number) => boolean

type UnionFindFunc = {
    find: findType;
    merge: mergeType;
    size: sizeType;
    same: sameType;
}

type UnionFindType = (n: number) => UnionFindFunc

const UnionFind: UnionFindType = n => {
    const parents: number[] = Array(n).fill(-1)

    const find: findType = x => {
        if (parents[x] < 0) return x
        parents[x] = find(parents[x])
        return parents[x]
    }

    const merge: mergeType = (x, y) => {
        x = find(x)
        y = find(y)
        if (x === y) return x

        if (parents[x] > parents[y]) [x, y] = [y, x]
        parents[x] += parents[y]
        parents[y] = x
    }

    const size: sizeType = x => -parents[x]
    const same: sameType = (x, y) => find(x) === find(y)

    return { find, merge, size, same }
}

type Input = (args: string) => void

const main: Input = args => {
    const input = args.trim().split("\n");
    const N = +input.shift()
    const uf = UnionFind(N + 1)

    input.forEach(abc => {
        const [_a, _b, c] = abc.split(" ")
        let a = Number(_a)
        let b = Number(_b)
        if (uf.same(a, b)) return false
        uf.merge(a, b)
        if (uf.size(1) === N) {
            console.log(c)
            return true
        }
    })
}

main(fs.readFileSync('/dev/stdin', 'utf8'));