import sys input = sys.stdin.readline enum = enumerate inf = 1001001001002002002 MOD = 10**9 + 7 import collections import random from bisect import bisect_right as bs_r def linput(ty=int, cvt=list): return cvt(map(ty,input().split())) def vinput(rep=1, ty=int, cvt=list): return cvt(ty(input().rstrip()) for _ in range(rep)) def gcd(a: int, b: int): while b: a, b = b, a%b return a def lcm(a: int, b: int): return a * b // gcd(a, b) def dist(x1,y1,x2,y2): return abs(x1-x2)+abs(y1-y2) #vD = [chr(ord("a")+i) for i in range(26)] def bye(res): sT = "No Yes".split() print(sT[res]) #exit(0) def csum(v): vr = [0,] s = 0 for a in v: s = (s+a)%MOD vr.append(s) return vr def main(): N, = linput() for _ in range(N): d, = linput() if d==1: print(10) else: print("9" + "0"*(d-1)) #print(res) if __name__ == "__main__": main()