Competitions

# 26-ЖДУ_2

# Number series

How many different sequences of integers are there where the difference between two adjacent elements is **1** and the sum of elements in the sequence is **n**?

#### Input

One integer **n** (**1** ≤ **n** ≤ `10`

).^{12}

#### Output

Print one integer - the number of different numerical sequences consisting of integers with a difference of **1** and elements with a sum of **n**.

Input example #1

7

Output example #1

4

Input example #2

1

Output example #2

2