# coding:UTF-8
import sys

MOD = 10 ** 9 + 7
INF = float('inf')

T = int(input())    # 数字

res = []
for i in range(T):
    N = int(input())    # 数字

    mp = {}
    r = 0
    idx = 1
    am = 9
    while True:
        d, m = divmod(am, N)
        if d in mp:
            if m in mp[d]:
                r = idx - mp[d][m]
                break
            else:
                mp[d][m] = idx
        else:
            mp[d] = {}
            mp[d][m] = idx

        am = 10 * m + 9
        idx += 1

    res.append(r)

for i in range(T):
    print(res[i])