#include <bits/stdc++.h>
using namespace std;
#define int long long
vector<vector<int>> G(200100);
pair<int,int> f(int x, int p){
	pair<int,int> ans = {0,1e18};
	bool k = true;
	for(int y:G[x])if(y != p){
		pair<int,int> a = f(y,x);
		ans.first = max(ans.first,a.second+1);
		ans.second = min(ans.second,a.first+1);
		k = false;
	}
	if(k) ans = {0,0};
	return ans;
}
signed main(){
    int N;
    cin>>N;
    for(int i=0;i<N-1;i++){
    	int a,b;
    	cin>>a>>b;
    	a--;
    	b--;
    	G[a].push_back(b);
    	G[b].push_back(a);
    }
    pair<int,int> a = f(0,-1);
    cout<<a.first<<endl;cout<<a.second<<endl;
}