模板§

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

void solve(void) {
    /* Coding begins here. */
}

int main(void) {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    ll test;
    while (test --) {
        solve();
    }

    return 0;
}