#include <iostream>
#include <vector>
using namespace std;

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);

    int N;
    cin >> N;
    vector<vector<int>> to(N);
    for (int e = 0; e < N - 1; ++e) {
        int a, b;
        cin >> a >> b;
        --a, --b;
        to.at(a).push_back(b);
        to.at(b).push_back(a);
    }

    auto rec = [&](auto &&self, int now, int prv, bool f) -> int {
        int cur = f ? 0 : 1 << 20;

        int nch = 0;
        for (int nxt : to.at(now)) {
            if (nxt == prv) continue;
            ++nch;
            if (int tmp = self(self, nxt, now, !f) + 1; (f and cur < tmp) or (!f and cur > tmp)) cur = tmp;
        }

        return nch ? cur : 0;
    };

    cout << rec(rec, 0, -1, true) << '\n';
    cout << rec(rec, 0, -1, false) << '\n';
}