C++ :

#include<cstdio>
#include<cstring>
#include<cmath>
#include<iostream>
#include<algorithm>
using namespace std;
const long long mod=(long long)(1e9+7);
int t;
int n;
int main()
{
    cin>>t;
    while(t--)
    {
        cin>>n;
        long long res=0;
        if(n==1)
        {
            cout<<10<<endl;
            continue;
        }
        if(n==2)
        {
            cout<<19<<endl;
            continue;
        }
        res=19;
        long long tmp=9;
        for(int i=3;i<=n;i++)
        {
            if(i%2==1)
            {
                tmp*=10;
                tmp%=mod;
            }
            res+=tmp;
            res%=mod;
            //cout<<res<<"~~~"<<endl;
        }
        cout<<res<<endl;
    }
    return 0;
}