I have a very simple problem for you. Given a positive integeter
)
and a prime number
)
, your job is to output a positive number which is divisible by

and has exactly

digits. Please output "T_T" if you can not find such number.
输入描述:
The first line of the input file contains two integers
and
.
is a prime number.
输出描述:
Output one number (without leading zeros) or "T_T"