Given a table A consisting of n rows and m columns, where each element at row i, column j is i×j (Ai,j=i×j). Rows are numbered from 1 to n, and columns are numbered from 1 to m.
If all elements in the table are sorted in non-decreasing order, what is the value of the k-th element?
### Input
- The first line contains three integers n,m,k.
### Output
- Print the value of the k-th element.
### Constraints
- 1≤n,m≤105.
- 1≤k≤n×m.
### Sample
Input:
336
Output:
4