Find a Number

给定两个数$d(1\le d \le 500)$和$s(1\le s\le 5000)$，找出最小数$n$使得$d\mid n$且$n$的各个位数之和为$s$。

You are given two positive integers $ d $ and $ s $ . Find minimal positive integer $ n $ which is divisible by $ d $ and has sum of digits equal to $ s $ .

The first line contains two positive integers $ d $ and $ s $ ( $ 1 \le d \le 500, 1 \le s \le 5000 $ ) separated by space.

Print the required number or -1 if it doesn't exist.

13 50

699998

61 2

1000000000000000000000000000001

15 50

-1