#include<bits/stdc++.h>
using namespace std;
bool bhuiwen(int n,int d)
{
	bool r=true;
	int a[105]={0};
	int k=0;
	while(n!=0)
	{
		a[k]=n%d;
		k++;
		n=n/d;
	}
	for(int i=0;i<k/2;i++)
	{
		if(a[i] != a[k-1-i])
		{
			r=false;
			break;
		}
	}
	return r;
}
int main()  
{
	int n;
	cin>>n;
	int a[105];
	for(int i=0;i<n;i++)
	{
		cin>>a[i];
	}
	for(int i=0;i<n;i++)
	{
		if(bhuiwen(a[i],2)==1 || bhuiwen(a[i],16)==1)
		{
			cout<<a[i]<<endl;
		}
	}
	return 0;
}
/**************************************************************
	Problem: 1386
	User: chenkexin
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/