#include <iostream>
#include <cstring>
#include <stdio.h>
#include <cstdlib>
#include <cmath>
#include <vector>
#include <list>
#include <map>
#include <queue>
#include <stack>
#include <algorithm>
#define maxn 0x7fffffff
using namespace std;
int corridor[201];
int main()
{
int T,N,left,right;
cin>>T;
while(T--)
{
memset(corridor,0,sizeof(corridor));
cin>>N;
for(int i=0;i&......
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