#include<bits/stdc++.h>
using namespace std;
int main(){
  vector<vector<bool> >dp(100+1,vector<bool>(2<<17,0));
  dp[0][0+1<<17]=1;
  for(int i=1;i<=100;++i){
    for(int j=0;j<(2<<17);++j){
      if(dp[i-1][j]){
        dp[i][j-i]=1;
        dp[i][j+i]=1;
      }
    }
  }
  int T;cin>>T;
  while(T--){
    int N;cin>>N;
    if(!dp[N][1<<17]){
      cout<<-1<<endl;
      continue;
    }
    int x=N,y=1<<17;
    vector<int>ans(N+1,0);
    while(0<x){
      if(dp[x-1][y-x]){
        ans[x]=1;
        y-=x;
      }else{
        y+=x;
      }
      --x;
    }
    for(int i=1;i<=N;++i)cout<<ans[i];
    cout<<'\n';
  }
}