#pragma GCC optimize("Ofast")
#pragma GCC optimize("O3,unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define f0r(i, n) for (auto i = 0; i < (n); ++i)
#define fnr(i, n, k) for (auto i = (n); i < (k); ++i)
#define all(v) (v).begin(), (v).end()
#define pb push_back
#define F first
#define S second
#define ctn(x) cout << x << '\n'
#define forl(a, l) for (auto a : l)
#define ctl(l) for (auto &a : (l)) cout << a << ' '; cout << endl;
#define lb(v, x) (lower_bound(all(v), x) - begin(v))
#define ub(v, x) (upper_bound(all(v), x) - begin(v))
#define pq priority_queue
template <class T>
using V = vector<T>;
using ll = long long;
using vi = V<int>;
using vl = V<ll>;
using pi = pair<int, int>;
using ti = tuple<int, int, int>;
using Adj = V<vi>;
using vvi = V<vi>;
#include "Alice.h"
const int N = 615;
V<pi> Alice() {
ll x = setN(N);
V<pi> edl;
fnr(m, 1, N) {
int r = x % m;
edl.pb({ m, r == 0 ? N : r });
}
return edl;
}
#pragma GCC optimize("Ofast")
#pragma GCC optimize("O3,unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define f0r(i, n) for (auto i = 0; i < (n); ++i)
#define fnr(i, n, k) for (auto i = (n); i < (k); ++i)
#define all(v) (v).begin(), (v).end()
#define pb push_back
#define F first
#define S second
#define ctn(x) cout << x << '\n'
#define forl(a, l) for (auto a : l)
#define ctl(l) for (auto &a : (l)) cout << a << ' '; cout << endl;
#define lb(v, x) (lower_bound(all(v), x) - begin(v))
#define ub(v, x) (upper_bound(all(v), x) - begin(v))
#define pq priority_queue
template <class T>
using V = vector<T>;
using ll = long long;
using vi = V<int>;
using vl = V<ll>;
using pi = pair<int, int>;
using ti = tuple<int, int, int>;
using Adj = V<vi>;
using vvi = V<vi>;
#include "Bob.h"
const int N = 615;
const ll M = 1e18;
ll egcd(ll a, ll b, ll &x, ll &y) {
if (b == 0) {
x = 1; y = 0;
return a;
}
ll x1, y1;
ll g = egcd(b, a % b, x1, y1);
x = y1;
y = x1 - (a / b) * y1;
return g;
}
pair<ll,ll> crt(ll a, ll b, ll c, ll d) {
ll x, y;
ll g = egcd(b, d, x, y);
ll lcm = b / g * d;
ll k = (c - a) / g;
k = (k * x) % (d / g);
if (k < 0) k += (d / g);
ll res = a + b * k;
res = (res % lcm + lcm) % lcm;
return {res, lcm};
}
ll Bob(V<pi> V) {
vi mod(N+1, -1);
ll a = 0, l = 1;
for (auto &[x, y]: V) {
if (x == N) x = 0;
if (y == N) y = 0;
if (x > y) swap(x, y);
mod[y] = x;
auto [a2, l2] = crt(a, l, mod[y], y);
a = a2, l = l2;
if (l >= M) return a;
}
return a;
}
