4294：Multiple

　　Given a positive integer N, you’re to solve the following problem:
　　Find a positive multiple of N, says M, that contains minimal number of different digits in base-K notation. If there’re several solutions, you should output the numerical smallest one. By saying numerical smallest one, we compar their numerical value, so 0xA_hex < 11_dec.
　　You may assume that 1 <= N <= 10⁴ and 2 <= K <= 10.

　　There’re several (less than 50) test cases, one case per line.
　　For each test case, there is a line with two integers separated by a single space, N and K.
　　Please process until EOF (End Of File).

　　For each test case, you should print a single integer one line, representing M in base-K notation,the answer.