class UnionFind():
    def __init__(self,n):
        self.n = n
        self.arr = [-1] * n
    def find(self,x):
        if self.arr[x] < 0:
            return x
        self.arr[x] = self.find(self.arr[x])
        return self.arr[x]
    def union(self,x,y):
        x = self.find(x)
        y = self.find(y)
        
        if x == y:
            return
        
        if self.arr[y] < self.arr[x]:
            x,y = y,x
        self.arr[x] += self.arr[y]
        self.arr[y] = x
n = int(input())
l = []
for i in range(n*(n-1)//2):
    a,b,c = map(int,input().split())
    l.append((c,a-1,b-1))
l.sort()
uf = UnionFind(n)
cnt = 0
ans = 0
for i in range(n*(n-1)//2):
    c,a,b = l[i]
    if uf.find(a) != uf.find(b):
        cnt += 1
        uf.union(a,b)
        ans = c
print(ans)