#include <bits/stdc++.h>
using namespace std;
const long long mod = 1000000007,
                inf = 1100000000000000000,
                Inf = 0x3f3f3f3f;
signed main () {
    cin.tie(0);
    ios_base::sync_with_stdio(0);
    int Tc = 1;
    // cin >> Tc;
    while (Tc--) {
        set<int> alpha;
        mt19937 rnd(238);
        uniform_int_distribution<int> uid(0, Inf);
        for (int i = 0; i < 10000000; ++i)
            alpha.insert(uid(rnd));
    }
}