#include<iostream>
#include<stack>
using namespace std;

int n;

int main()
{
    stack<int>s;
    cin>>n;
    while(n--)
    {
        int x;
        cin>>x;
        while(x!=0)
        {
            s.push(x%2);
            x=x/2;
        }
        while(!s.empty())
        {
            cout<<s.top();
            s.pop();
        }
        puts("");
    }
    return 0;
}