def get_input(): t = int(input()) length = [] strs = [] for i in range(t): length.append(int(input())) strs.append(input()) return t, length, strs def main(): t, length, strs = get_input() if t < 1 or t > 100: print('NO') return for i in range(t): if length[i] > 100: print('NO') return if length[i] < 11: print('NO') continue s = strs[i] j = 0 while s[j] != '8' and length[i] >= 11: j += 1 length[i] -= 1 s = s[j:] if length[i] >= 11 and s[0] == '8': print('YES') continue print('NO') main()