import re
for _ in range(int(input())):
    print('YES' if re.match(r'^[789]\d{9}$', input()) else 'NO')

import re
check = re.compile(r'^[789]\d{9}$')
N = int(input())
while N > 0:
    N -= 1
    print('YES' if check.match(input()) else 'NO')

import re

N = int(input())  

for _ in range(N):
    cell_number = input().strip() 
    if re.match(r'^[789]\d{9}$', cell_number):  
        print('YES')
    else:
        print('NO')

import re

pattern = r"^[7-9]\d{9}$"
N = int(input())
mobile_no = []

if 1 <= N <= 10:
    for n in range(N):
        user_input = input()
        mobile_no.append(user_input)

import re
N=int(input())
for i in range(N):
    num=input()
    if len(num)<10:
        print('NO')
    else:
        pattern=r"^[789][0-9]{9}$"
        if bool(re.match(pattern,num))==True:
            print('YES')
        else:
            print('NO')