Problems
Pieces - 2
Pieces - 2
The segment length L is cut into the largest number of units of length - the natural numbers, of which it is impossible to lay down a single triangle. Find the number of possible options for cutting. (Two cutting are different, if ordered arrays of lengths of their parts differ by at least one element).
Input data
The value of L (4 <= L <= 200).
Output data
The only number - the number of options for cutting.
Examples
Input example #1
11
Output example #1
4