using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Numerics;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using static System.Math;
public static class P
{
    public static void Main()
    {
        int t = int.Parse(Console.ReadLine());
        for (int i = 0; i < t; i++)
        {
            long n = int.Parse(Console.ReadLine());
            while (n % 2 == 0) n /= 2;
            while (n % 5 == 0) n /= 5;
            long[] table = new long[10];
            for (int j = 0; j < 10; j++) table[9 - (n * j) % 10] = n * j;
            int len = 0;
            long val = 0;
            do
            {
                val += table[val % 10];
                val /= 10;
                len++;
            }
            while (val != 0);
            Console.WriteLine(len);
        }
    }
}