#include<bits/stdc++.h>#define int long long#define PII pair<int,int>#define endl '\n'#define LL _int128using namespace std;const int N=2e5+10,M=1e3+10;int a[N],pre[N];signed main(){ std::ios::sync_with_stdio(false); cin.tie(0);cout.tie(0); int n; cin>>n; if(n%2==0) { cout<<&...