"""

https://yukicoder.me/problems/no/2532

"""

import sys
from sys import stdin

from collections import deque
def NC_Dij(lis,start):

    ret = [float("inf")] * len(lis)
    ret[start] = 0
    visit = []
    
    q = deque([start])
    plis = [i for i in range(len(lis))]

    while len(q) > 0:
        now = q.popleft()
        visit.append(now)

        for nex in lis[now]:

            if ret[nex] > ret[now] + 1:
                ret[nex] = ret[now] + 1
                plis[nex] = now
                q.append(nex)

    return ret,plis,visit

N = int(stdin.readline())

lis = [ [] for i in range(N) ]

for i in range(N-1):
    a,b = map(int,stdin.readline().split())
    a -= 1
    b -= 1    
    lis[a].append(b)
    lis[b].append(a)

dlis,plis,visit = NC_Dij(lis,0)
visit.reverse()

dp = [None] * N

for v in visit:

    turn = dlis[v] % 2

    if turn == 0: #max
        now = 0
        for nex in lis[v]:
            if nex != plis[v]:
                now = max(now , dp[nex] + 1)

    else:

        now = float("inf")
        for nex in lis[v]:
            if nex != plis[v]:
                now = min(now , dp[nex] + 1)
        if now == float("inf"):
            now = 0

    dp[v] = now

print (dp[0])

dp = [None] * N

for v in visit:

    turn = dlis[v] % 2

    if turn == 1: #max
        now = 0
        for nex in lis[v]:
            if nex != plis[v]:
                now = max(now , dp[nex] + 1)

    else:

        now = float("inf")
        for nex in lis[v]:
            if nex != plis[v]:
                now = min(now , dp[nex] + 1)
        if now == float("inf"):
            now = 0

    dp[v] = now

print (dp[0])