#include<iostream>
using namespace std;
int n,a[200005];
int main(){
	cin>>n;
	for(int i=1;i<=n;i++) cin>>a[i];
	for(int i=n;i>=1;i-=2) cout<<~a[i]+2<<" ";
	for(int i=n%2+1;i<=n;i+=2) cout<<a[i]<<" ";
	return 0;
}

感觉没啥问题