#include <bits/stdc++.h>
using namespace std;
using pi = pair<int, int>;
using ll = long long;
using pl = pair<ll, ll>;
using pip = pair<int, pi>;
using pdp = pair<double, pi>;
constexpr int dy[] = {0, 0, -1, +1};
constexpr int dx[] = {-1, +1, 0, 0};
constexpr int LIMIT = 1e5 + 2;
ll A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z;
int main()
{
cin.tie(0)->sync_with_stdio(0);
}
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