A - Bad Ugly Numbers

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sz size()
#define pb push_back
#define lulu for(int i=0;i<n;i++)
#define ed endl
#define ct cout

using namespace std;


void jai_bajrangbali()
{
    ll c,d,e,n,f,x,y,z,cnt=0,res=0,mx=1;
    ll sum=0;
    bool ash=false;
    string s;
    cin>>n;
    //ll a[n];
    if(n==1)
    {
        ct<<-1<<ed;

    }

    else
    {
        ct<<5;
        x=n-1;
        while(x)
        {
            ct<<7;
            x--;
        }

        ct<<ed;

    }

}

int main()
{
    long long t;
    cin>>t;

    while(t--)
    {

        jai_bajrangbali();


    }
















    return 0;
}