phone no validate
# Enter your code here. Read input from STDIN. Print output to STDOUT
import re
for _ in range(int(input())):
if re.match(r'[789]\d{9}$',input()):
print('YES')
else:
print('NO')phone no validate
# Enter your code here. Read input from STDIN. Print output to STDOUT
import re
for _ in range(int(input())):
if re.match(r'[789]\d{9}$',input()):
print('YES')
else:
print('NO')Copyright © 2021 Codeinu
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