from sys import stdin
from sys import setrecursionlimit
setrecursionlimit(10000000)
n = int(stdin.readline().rstrip())

par = [i for i in range(n+1)]
rank = [0 for i in range(n+1)]

def root(x):
    if par[x] == x:
        return x
    else:
        par[x] = root(par[x])
        return par[x]

def unite(x,y):
    karix = root(x)
    kariy = root(y)
    if karix == kariy:
        return 0
    if rank[karix] < rank[kariy]:
        par[karix] = kariy
    else:
        par[kariy] = karix
        if rank[karix] == rank[kariy]:
            rank[karix] += 1

def same(x,y):
    return root(x) == root(y)

num = 1
for i in range(n*(n-1)//2):
    a, b, c = stdin.readline().rstrip().split()
    a = int(a)
    b = int(b)
    if not same(a,b):
        num += 1
        unite(a,b)
    if num == n:
        print(c)
        exit()