import sys
input=sys.stdin.readline
def I(): return int(input())
def MI(): return map(int, input().split())
def LI(): return list(map(int, input().split()))


mod=10**9+7
N=I()
for _ in range(N):
    d=I()
    res=9*pow(10,d-1)
    if d==1:
        res+=1
    print(res)