CF1120E.The very same Munchhausen
普及/提高-
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题目描述
A positive integer a is given. Baron Munchausen claims that he knows such a positive integer n that if one multiplies n by a , the sum of its digits decreases a times. In other words, S(an)=S(n)/a , where S(x) denotes the sum of digits of the number x .
Find out if what Baron told can be true.
输入格式
The only line contains a single integer a ( 2≤a≤103 ).
输出格式
If there is no such number n , print −1 .
Otherwise print any appropriate positive integer n . Your number must not consist of more than 5⋅105 digits. We can show that under given constraints either there is no answer, or there is an answer no longer than 5⋅105 digits.
输入输出样例
输入#1
2
输出#1
6
输入#2
3
输出#2
6669
输入#3
10
输出#3
-1