#include <bits/stdc++.h>
using namespace std;
using namespace chrono;
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#endif

int main()
{
    int64_t n;
    cin >> n;
    cin.ignore();
    vector<string> ss(n);
    for (auto &&s : ss)
    {
        getline(cin, s);
    }

    unordered_map<string, int64_t> prev;

    unordered_map<string, int64_t> ans;

    for (int64_t i = 0; i < n; i++)
    {
        string s = ss[i];

        unordered_map<string, int64_t> cur(prev);
        cur[s] += (i + 1);

        for (auto [p, c] : cur)
        {
            ans[p] += c;
        }

        swap(prev, cur);
    }

    vector<pair<string, int64_t>> ps;
    for (auto [p, c] : ans)
    {
        ps.push_back(make_pair(p, c));
    }
    ranges::sort(ps);

    for (auto [p, c] : ps)
    {
        cout << c << ' ' << p << endl;
    }

    return 0;
}