答题模版
#include <bits/stdc++.h>
#ifndef DEBUG
#define debug(x)
#endif
using namespace std;
using i64 = int64_t;
#define endl '\n'
void solve() {
}
int main() {
cin.tie(0)->sync_with_stdio(0);
int t = 1;
// cin >> t;
while (t --) {
solve();
}
}