Continuous Digit

We define f(m,k,n) is the value of the nth number which has m continuous digit k. For example, f(3,6,1)=666,f(3,6,2)=1666,f(3,6,3)=2666,....
Now give you m,k,n and ask you to solve f(m,k,n).

Input contains multiple cases each presented on a separate line. Each line contains three integer numbers m,k,n(2<=m<=10,1<=k<=9,1<=n<=1000000000).

For each test case, your program should output the value of f(m,k,n).

3 6 187

66666

2009 Multi-University Training Contest 7 - Host by FZU